Albert Sabin came up with an oral polio vaccine in 1962
15+25+35+45=120 120 divide 4 = 30
Because history tends to repeat itself and these stories echo events in real life.
The (Yellow River) is especially important to China’s early history. Winds from the Gobi Desert blow (sediment/sand) onto the river valley. When the river floods, it then deposits the rich material onto the surrounding plain. Because of this (Farming) was made possible in China.
Answer:
Germany
Explanation:
Read, take classes, anything where you can learn history
