Which statement best reflects Gladden’s ideas as expressed here?

answer: to communicate with people on the other side.

explanation:

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."

probally   a few days after there called

four sitting presidents have been assassinated while in office but the first was abraham lincoln,