Historical clue formulations

• Its basin covers roughly 40% of South America — 2024-02-19
• One of a tribe of mythical warriors — 2020-10-16
• Fortune 500 company that started out selling books — 2020-05-28
• Second-largest private employer in the U.S., after Walmart — 2020-04-09
• Seattle-based retail giant — 2019-04-03
• Wonder Woman is one — 2017-04-02
• World's most voluminous river — 2017-01-22
• World's largest online retailer — 2014-07-15
• Fortune 100 company based in Seattle — 2014-06-11
• Fighting female of myth — 2012-08-08
• Big bookseller — 2006-01-08
• Bookseller ___.com — 2002-12-02
• Woman warrior — 2001-05-29
• Popular dot-com stock — 2000-09-03
• Mythical warrior — 1998-03-25