<human>: Question: What happened in Philadelphia in 1856?

Is From the American Civil War until the mid-20th century, Philadelphia was a bastion of the Republican Party, which arose from the staunch pro-Northern views of Philadelphia residents during and after the war (Philadelphia was chosen as the host city for the first Republican National Convention in 1856). a good answer to this question?

OPTIONS:
- yes
- no
<bot>: yes