5 myths
The pyramids were built by paid Egyptian workers who were well fed, housed in a purpose-built village, and buried in honor beside the monuments they raised.
Napoleon was about 5'6" to 5'7", average or slightly above for his time — the myth comes from a French measurement misread as English and from British wartime cartoons.
Vikings never wore horned helmets. The image comes from a 19th-century opera costume, not real Viking history.
Einstein excelled at math. The myth likely comes from a failed entrance exam (due to other subjects) and confusion over old grading scales.
The Declaration of Independence was signed on August 2, 1776