Why do you think expositions such as the World's Columbian Exposition in Chicago in 1893 were important?

Explanation:

The World's Columbian Exposition not only guided America toward the twentieth century through its valorization of consumerism and a new business elite. It also showed the way to modern America through its emphasis on technology, specifically electricity.

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."

definitely a for sure. ill see and update if i get the answer