Why is it called a Hamburger if it's made of beef?

Question

Why is it called a Hamburger if it's made of beef?

Answer 1

The name "hamburger" is derived from "Hamburg Steak," which is cured beef, and was popular in Hamburg, Germany.  It was brought to the US in the mid-19th century.

Answer 2

in ancient times the hamburger was made, then witches cast a spell on some pigs and turned them into mutants (cows) turns out the cowburger tasted better, so they breeded the cows, and kept the name hamburger.

TA AND

Answer 3

It was called hamburger because it was named after a ground meat sandwich which originated in Hamburg Germany.