if I remember correctly it's the Sumerians
Answer:
The construction camps were beset with malaria, cholera, and starvation. The ties and some bridges were made of immature green wood that buckled and created maintenance headaches all along the 5,772-mile route – about a fourth of the circumference of the earth – that would not be tied together until 1901.Originally, in the east, the Russians secured Chinese permission to build a line directly across Manchuria (the Chinese Eastern Railway) from the Transbaikal region to Vladivostok; this trans-Manchurian line was completed in 1901. ...It allowed people to reach the remote regions and exploit Siberia's natural resources.
Explanation:
Who were the people who first got here?
Answer: Hitler was a great speaker, with the power to make people support him. The moderate political parties would not work together, although together they had more support than the Nazis.The depression of 1929 created poverty and unemployment, which made people angry with the Weimar government. People lost confidence in the democratic system and turned towards the extremist political parties such as the Communists and Nazis during the depression.
Explanation: hope this helps!