The population in europe had been lowered by the black death in the 1300s so that only about 90 million were living at the time of the conquest of the new world. estimates place the population of native americans in the new world at:

50 to 100 million.

Explanation:

There´s no consensus among scholars. These are approximations and it´s impossible to establish a real figure today.  A population close to that of Europe, 9O million.

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."

joseph stalin's cult of personality became a prominent part of soviet culture in december 1929, after a lavish celebration for stalin's 50th birthday.[answer:

explanation: