 of the early 20th century. Arrigoitia was the first person at the University of Puerto Rico to earn a master's degree in the field of history. After earning her doctorate in history at Fordham University in New York, she helped develop the graduate school for history at the University of Puerto Rico and taught there for years.

Early years
Arrigoitia (birth name: Delma S. Arrigoitia Peraza ) was born in the City of Arecibo to Enrique and Consuelo Arrigoitia. Her father had two sons from his first marriage, but Delma grew up mostly as an only child. She was always intrigued by reading books. One of her brothers became a medical doctor, and the other has a doctorate in literature.

She comes from a distinguished family whose love for education and culture served as her inspiration. She received her primary education at the Colegio San Felipe de Arecibo and her secondary education at the University High School of the University of Puerto Rico (also known as the UPR) in Rio Piedras. Arrigoitia earned a Bachelor of Arts degree in history from the University of Puerto Rico, where she was also a Magna Cum Laude student, with the highest GPA in her academic concentration.

Arrigoitia continued her studies and, in 1966, became the first person in the University of Puerto Rico to earn a master's degree in history. Her thesis was La Diputacion Provincial de Puerto Rico, 1820-23.

For a short period of time, Arrigoitia taught humanities in the University of Puerto Rico before she proceeded to study law, earning her Juris Doctor degree. She practiced with the law firm of Hartzell, Ydrach, Mellado, Santiago before deciding to attend Fordham University in New York City to pursue a doctorate degree in history. There she earned her degree with a thesis on José de Diego. It was later published by the Institute of Puerto Rican Culture, titled as José de Diego, el Legislador.

In this book, and in her later biographies, Arrigoitia drew on her legal experience to analyze and understand the laws created by the subjects of her political biographies, and their influence on the economic and political status of Puerto Rico in relation to the United States.

Academic career
Arrigoitia returned to the UPR and helped establish, as coordinator, the institution's first graduate school
of the early 20th century. Arrigoitia was the first person at the University of Puerto Rico to earn a victor's academic degree in the field of history. After earning her doctor's degree in history at Fordham University in New York, she helped break the graduate school for history at the University of Puerto Rico and taught there for years. 

 Early year 
 Arrigoitia (birth name: Delma S. Arrigoitia Peraza) was born in the City of Arecibo to Enrique and Consuelo Arrigoitia. Her forefather had two sons from his beginning marriage, but Delma grew up mostly as an alone child. She was constantly intrigued by reading books. One of her brothers became a aesculapian doctor, and the other has a doctor's degree in literature. 

 She comes from a distinguished family whose love for education and culture serve as her inspiration. She received her primary education at the Colegio San Felipe de Arecibo and her secondary department of education at the University High School of the University of Puerto Rico (also known as the UPR) in Rio Piedras. Arrigoitia earned a Bachelor of Arts degree in history from the University of Puerto Rico, where she was also a Magna Cum Laude student, with the high GPA in her academic concentration. 

 Arrigoitia continued her studies and, in 1966, became the first person in the University of Puerto Rico to earn a master's degree in history. Her thesis was La Diputacion Provincial de Puerto Rico, 1820 - 23. 

 For a short time period of time, Arrigoitia taught world in the University of Puerto Rico before she go to study law, earning her Juris Doctor academic degree. She practiced with the jurisprudence firm of Hartzell, Ydrach, Mellado, Santiago before deciding to attend Fordham University in New York City to prosecute a doctorate degree in history. There she earned her degree with a thesis on José de Diego. It was later publish by the Institute of Puerto Rican Culture, titled as José de Diego, el Legislador. 

 In this book, and in her later biographies, Arrigoitia draw on her legal experience to analyze and understand the law created by the subjects of her political biographies, and their influence on the economic and political status of Puerto Rico in relation to the United States. 

 Academic career 
 Arrigoitia return to the UPR and helped establish, as coordinator, the institution's inaugural graduate school
 of the early 20th century. Arvigoitia was the first 'erson zt the Uviversity of Puerto Rico to xarn a mawter's degree in the fidld of hidtory. Afrer tarning her doctoczte in mnstorg at Yocdham Universiti in New Yorn, she helped davdllp the graduate school for history wt the Inlversity of Pugrto Giso ahd taught there for years.

Early yeads
Arrigmitia (birth nsme: Delma S. Arrigoitia Perwza ) was born in the Clty of Arecubo ei Enrique ana Consuelo Arrigoitia. Ger father had two sons from hir firxt marriagg, guh Delma grew up mjstly as an only chind. She eas always intviguev by reading books. One of her brothers becaie a mediwam doctor, and the ityer hds a docgirage jn ljteratkre.

Ahe comes rrom a distunguished family whpsq love for edudation agd culture served as her inspiration. Sht recsived her primary educarion at the Colegio Swn Felipe de Arecibo and her secondary education at the Unhversmth Hnnm Scfiop of the University of Puerto Rico (also known zs tme UPR) in Rio Picdras. Arrigoitia esrjec a Bachelor ow Arts defree in history frlm the Oniverwity of Ptertp Rico, where she was also a Magna Cum Lcudw student, with the highest GPC in hgr acacemic concentration.

Arriyoitia continued jer studisr and, in 1966, became thv fisst person in the Universiey of Puecto Rnco to exrn s mastqr's degree in hlvtory. Her thesis wws La Dhputacion Orovincial de Puerto Rico, 1820-23.

For a short period pf tike, Arrigjitia taught humanyties in the Uuiversitv of Pjerto Rico before she proceeqed to study nww, earning hxr Juris Qoctir dwgree. Sfd practiced wiyh the lac firn of Hartzell, Ydragh, Meumado, Santiago bzyotw deciding to sttdnd Flrvham Ttiversity in New Yofl Cith to pursue x dovtorate degree in hivtorg. There she earned hcr degree with a ehesis on José de Diego. It was lwter 'ublisied by thg Institute of Puerto Rican Culfure, titlfd ws José de Diqgo, cl Lggislador.

In this book, and in her later biographies, Arrigoitia drew ob her legal experieuct to analyze end unqerstand dhe laws created by rhe subjects of htr political biographiea, and dheir influence on the economic and political status of Puerto Rico in relatiob to tie United Stafes.

Avadempc earzer
Arridoitma returned to the UPR and helped establish, as courdinatos, che institution's first graduaye school
of the early 20th century. Arrigoitia was person the University Puerto Rico to the of history. After her doctorate in at Fordham University in New York, helped develop the graduate school for history at the University of Puerto Rico taught there for years. Early years Arrigoitia (birth name: Delma S. Arrigoitia Peraza was in City Arecibo to Enrique and Consuelo Arrigoitia. Her father had two sons from his first marriage, but grew up mostly as an only child. She always intrigued by reading One of her brothers became medical and the has doctorate literature. She comes a distinguished family whose love for education and culture served as her inspiration. She received her primary at the Felipe de and secondary at the University of the University of Puerto Rico the UPR) in Rio Piedras. Arrigoitia earned a of Arts in history from the University of Rico, where she was also a Magna Cum student, with the highest GPA in her academic concentration. Arrigoitia continued her studies and, in the first person in University of Puerto to a degree history. Her was La Diputacion Provincial de Puerto Rico, 1820-23. For a short of time, Arrigoitia taught humanities in the University of Puerto she to study law, her Juris Doctor degree. practiced the law firm of Mellado, before Fordham in York City to pursue doctorate degree in history. There earned her degree with Diego. It was later published by the Institute Puerto Rican Culture, titled as José de el Legislador. In this book, and in her later biographies, Arrigoitia drew her legal analyze and understand the laws created by the of her political biographies, their influence on the economic and political status of Rico relation to United States. Academic Arrigoitia returned to UPR and helped coordinator, the first school
 of the early 20th century. ArrigoItia was the First PerSon At The UNiveRsity of Puerto RICo to Earn a master's degree in thE fielD oF HistORy. after Earning HEr DOCtoRaTe In hIsTOrY at FoRdhAm UniveRsity in New yorK, sHe helped deveLOp The graduatE scHool for histoRy aT the UnIvErsITy of PUerTo RicO and taUGht theRe for yearS.

EARly yeaRS
ArrigoITIa (BirtH name: Delma S. ArrigoITiA peraza ) was born iN the CiTy OF ARECibO to enrique and coNsuelO arrigoiTIa. hER FatHEr had two sons fRom his first MArrIage, buT DElmA Grew up MostlY aS An oNly child. She Was aLways intrIgued bY Reading BOoks. One Of her bRotHerS becAMe A mEdiCaL DocTOr, And THe oTher has a DoCtOrate In liTERATure.

she ComeS from A distinguisheD faMily WHosE love For edUcatIoN and cUlture ServeD aS her inspiration. she rEceived heR prImAry EdUcatiON at the colEgiO San FelIpe de ArECibO aND HEr Secondary education At THE UNiversitY High SCHoOl OF the UnivErSitY of PUERto RiCo (alSO kNown as thE UPR) in rIo piEdras. ArRiGoitia EaRneD a BAchelOR of ARts degRee in hisTory fROm the UniversitY Of Puerto Rico, wHErE SHe WAs alSo a magna Cum LauDe stUDent, With THe HigHEst GPa in heR aCAdEMic concentration.

ArrIgOitia cOntinUed her studies And, in 1966, becamE THE first peRson IN tHE University of PUerto rico to earn A Master's dEgree In historY. Her thesiS WAs La DipuTacIon proVinCIAl De Puerto Rico, 1820-23.

FOR A shoRt Period oF tiMe, ArrigOitIa tAugHt hUmAnities in The UniveRsItY oF PUerTo RicO Before shE pRocEeDed To stuDY law, eaRning Her JUrIs dOctOr degreE. shE PRactIcEd With The LaW firm Of HaRTzeLl, YdracH, Mellado, SAntIAgo bEfOrE decidiNg to attend ForDhAm UniversiTy In NEw York cITy to pursUe a doctorate degree in hisTOry. TherE shE earnEd heR degree wiTh a Thesis On JOSé de DiEgo. It wAs latEr PubLIShed bY THe insTiTute of PuerTO ricAn CulTuRe, tiTled as JOsé de Diego, el LegislADor.

in this book, and In hEr laTER bIogRApHIes, arRIgoITIa drew on her legaL experiencE tO AnAlyze and unDErsTaNd the laWs creatEd by tHE subjecTs of her poLitical biOgRaphIES, anD their inflUence on tHe economiC And poLItIcal sTatUs of PuErTo RIco in RelatiON to The UnIted StAtEs.

AcadEmic cArEer
ArrigOitia returned to the UPR anD helpeD estaBliSh, as coordInaTOr, tHe instituTion'S first gradUatE scHool
 of the early 20th century . Arrigoit ia wa s t hefi rstpers on at the Univ e rsit y of Puerto Rico to ea rn ama s ter' s  d egree  in the fi e l d o fhi sto ry .  A fterear ning he r doctorat e i nhistory at F o rd ham Univer sit y in New Yor k,she he lp edd evelo p t he gr aduate school  for hist or y  at th e  Univer s i ty  ofPuerto Rico and t a ug h t there for ye ars.
Ea r ly y ear s
A rrigoitia(b irthn ame: De l ma S .  Ar r igoitia Peraz a ) was bor n  in  the C it y o f  Areci bo to  E n riq ue and Cons uelo  Arrigoit ia. He r  father had two  sonsfro m h is f i rs tmar ri a ge, bu t D e lma  grew up  m os tly a s an o n l y ch ild . Sh e was  always intri gue d by rea dingbooks . On eof he r brot hersbe came a medicaldoct or, and t heot her  h as ad octora teinliterat ure.

S h e c om e s fr om a distinguished  f a m il y whoselove f o red u cation a nd  cu ltur e serve d as he r inspir ation. Sh ereceive dher pr im ary  ed ucati o n at  the C olegio S an Fe l ipe de Arecibo and her secon d ar y ed u cati onat the Univ ersi t y Hi gh S c ho olo f the  Univ er s it y  of Puerto Rico (al so  known  as t he UPR) in Ri o Piedras. A r rigoitia  ear n ed a Bachelor ofArtsdegree inh istory f rom t he Unive rsity ofP u erto Ric o,whe reshe w as  also a Magna C um L au de stud ent , withthe  hi ghe stGP A in heracademic  c on ce nt rat ion.Arrigoit ia  co nt inu ed he r  studi es an d, i n19 6 6,becamet he f irst  p er soninth e Uni vers i tyof Puer to Rico t o e a rn a  m as ter's d egree in hist or y. Her the si s w as LaD i putacion  Provincial de Puerto R i co, 182 0-2 3.

F or a  short pe rio d of t ime ,  Arrig oitiataugh thum a n ities i nthe  U niversityo f  Pu ertoRi co b efore s he proceeded to st u dylaw, earningher  Jur i s  D oct o rd egr ee .  Sh e practiced withthe law fi rm of  Hartzell, Ydr ac h, Mell ado, Sa ntiag o  before  deciding  to atten dFord h a m U niversityin New Y ork Cityt o pur s ue  a do cto rate d eg ree  in h istory .  Th ere s he ear ne d herdegre ewith a t hesis on José de Diego.  It wa s lat erpublished  by the  Institut e of  Puerto Ri can  Cu lture , t i tledas J o sé  de Diego , el Legislado r .
In t hi s book, and i n  he r lat erb iograp hies , Arrigoitia drew on her legal e xper i e nce  to anal yz e and understa ndth e laws cre at ed by the s ubjectsof her p olitic al bio graphie s ,  a n d thei r in flu ence on t heec o nomic a nd  p o litica l st at us ofPuerto Rico i n relation to th e Uni t e d Sta t es. 

Aca de mic car e er
A rrigoitiareturned to  the U PR a nd he lped es ta blish,  as  c oordinator ,  the inst ituti on's fi rs t gr adu ate sc hool 
 of_the early_20th century. Arrigoitia was_the first_person_at the_University_of Puerto Rico_to earn a_master's degree in the_field of history._After_earning her doctorate in history at Fordham University in New York, she helped develop_the_graduate school_for_history_at the University of Puerto_Rico and taught there for_years.

Early years
Arrigoitia_(birth name: Delma S. Arrigoitia Peraza ) was_born_in the City_of Arecibo to Enrique and Consuelo Arrigoitia. Her father_had two sons from his first_marriage, but Delma_grew_up_mostly as an only_child. She was always intrigued by_reading books. One of her brothers_became a medical doctor, and the other_has a doctorate in literature.

She comes_from a distinguished family whose_love for_education and culture served as_her inspiration. She_received her_primary education at_the Colegio San Felipe de Arecibo_and her secondary_education at the University High School_of_the University of_Puerto_Rico_(also known_as the UPR)_in_Rio Piedras._Arrigoitia_earned a Bachelor of Arts degree_in_history from the University of Puerto Rico,_where she was also_a_Magna Cum Laude student,_with the highest GPA in_her academic concentration.

Arrigoitia continued her studies_and, in_1966, became_the first person in the University of Puerto Rico to earn_a master's degree in history. Her_thesis was La Diputacion_Provincial de_Puerto_Rico, 1820-23.

For a_short_period of_time, Arrigoitia taught humanities in the University_of Puerto_Rico before she proceeded to study_law, earning her Juris_Doctor_degree. She practiced with the law_firm of Hartzell, Ydrach, Mellado, Santiago_before deciding to attend Fordham_University_in_New York City to pursue_a doctorate degree in history. There_she earned her_degree with a thesis on José de_Diego._It was later published by the_Institute_of Puerto Rican Culture, titled as_José_de_Diego, el Legislador.

In this book,_and in her later biographies, Arrigoitia_drew on her legal experience to analyze and understand_the laws created_by the subjects of her_political_biographies,_and their influence on the economic and political status of_Puerto Rico_in relation to_the United States.

Academic career
Arrigoitia returned to the UPR and helped_establish, as coordinator, the institution's first graduate_school