Answer:
President Harry Truman
Explanation:
President Harry Truman, who insisted on free elections for Eastern European countries
Water, water is the starting root of life, they believed it was the way to sustain spirit and life. they would take ice baths and hot baths to help make their body stronger.
The population declined. Many Eastern Europeans were murdered. Among them Slavs, Jews, Gypsies, etc.
According some authors which discuss this theme there were some factors as:
1) At the middle of 1850 the Chinese were still under British rule and the conditions were very difficult.
2) The devastation of southern Chinese by the taiping rebellion. This destroyed the rural economy and killed more than twenty millions people.
3) The gold was discovered in California in 1848. It produced a big immigrations at the final of century 17th.