During the first part of the 19th century, it was mainly "<span>C. the railroad and the telegraph" that</span> revolutionized transportation and communication, since these greatly increased efficiency and speed.
Pyramids, scultures, monuments where they did their sacrifices and there is one Mayan city on El Salvador that has a soccer field where the mayans played soccer with the head of the last loser that was killed on their sacrifices
I believe Abraham was A. the leader of Canaan. Hope that helps.
