What feat gave Alexander the name Alexander the Great?

What gave the name " Alexander the Great " by conquering  Syria and then Egypt which is where he founded the city of Alexandria.

Explanation: if you're wondering when he founded the city it was in 331 BCE.

before, mexicans where an indian tribe but when the spanish took over, they changed their language to spanish.

hope this : d

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.