You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What date did Frank Grillo's Marvel supervillan first appear in comics?" whose answer is October 1989.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Crossbones first appearance in comics
Useful Output:

Doc 1: Crossbones was created by Mark Gruenwald and Kieron Dwyer and first appeared in Captain America #359.
Doc 2: Crossbones' first full appearance came during the "Bloodstone Hunt" storyline. Under the Skull's orders, he trailed Captain America and Baron Zemo during their
Doc 3: New 71.25USD (Tax) ; CAPTAIN AMERICA #360 CGC 9.2 (1st Crossbones) Comics. First appearance of Crossbones. Back Nice clean slab Please check the
Doc 4: Captain America #359 CGC 9.6 first appearance of crossbones - marvel comics 1989. $128.04. Seller: cyberspacecomics (49372).
Doc 5: Captain America #360 CGC 9.0 Off-White to White Pages 1st appearance of Crossbones Story by Kieron Dwyer and Mark Gruenwald Art by Kieron Dwyer and Danny