Answer:
I think the answer is social contract.
Explanation:
I hope this helps!
I don't understand you're question. if you could rephrase i could help
Answer:
From 1861 to 1900, the Civil War fostered a great deal of economic change in the United States. During this period, the economic change most fostered by the Civil War included (1) an end to slavery; (2) an increase in the need for cheap labor to work in the factories; and (3) an increase in railroad building.
Explanation:
Answer:
may 14, 1948 that's the formation
The first mask was made in 7000 BC. It was used primarily for rituals and ceremonies and where typically made of leather or wood. Keep in mind, these where the first masks that our modern generation has been able to find and preserve, masks could have been made earlier than this but detirriorated over time.
However, the first modern surgical masks where made in the early 1960s and replaced a more primitive method of cloth masks.
I hope I have helped! :)