They found out by experimenting :P sorry not much but yeah
The French kept the stone until Napoleon's defeat. After that, it was handed over to the English (England) because of the Treaty of Alexandria. Britain still has it in a museum on display.
President Lincoln's leadership was key to North's victory against the South during the Civil War.
Answer:
The telescope
Explanation:
the telescope did not contribute to industrial revolution because it wasn't part of the raw materials needed for industrialisation
Answer:
In March 1917 riots broke loose in Russia. The people were not pleased with how the government handled the scarcity of food and fuel. On March 15, Czar Nicholas II, the leader of the Russian Empire, left his throne to a temporary government. This government supported Russia's continued participation in World War I, but they still could not solve the situation with the food shortages that were affecting the country.
Explanation:
