Why was the introduction of corn and potatoes to europe and asia so significant

It was so important because both were inexpensive and easy to grow, so it changed the way of life for many people. 

France played a key role in the american revolutionary war (american war of independence; 1775–1783). motivated by the ideals of the new nation which were inspired by the french enlightenment, as well as its long-term rivalry with britain and so as to avenge their territorial losses during the french and indian war, france secretly began sending supplies to the americans in 1775.

Freedom of religion, freedom of speech, being protected by our military and first responders on a daily basis and many many more.