The Celts had two great migratory waves, that is, in two moments they began to spread as the singer Vini would say "water downhill and fire uphill". First it was in 1800 BC, when the idea of sacred land came up, they needed to find this sacred land, so they went out in all directions.
In the beginning they lived in the region of Germany, but they went to where France, Italy, Greece, Spain, Portugal and even Turkey are today. They took with them their legends, their stories about the 4 sacred artifacts, and their customs. Certainly these customs influenced the future Greeks and Romans, but hence the saying that they founded these peoples.
The fact is that you cannot say that a people is founded, little by little people from different places come to the same land, meet there, exchange information and end up developing their own culture, Greece and Rome are not Celtic colonies, but with sure they were there, and were part of these societies
Once they arrived in England, a new migration took place, they wanted to spread the druid sciences to all the other Celts, contact was generally made around them. Thus the men remained in the lands in which they lived as the druids came to them, thus occupying a vast territory. His contact with the peoples of the Mediterranean was constant, although it is always said that they did not understand each other very well. The Romans, so to speak, took centuries to conquer them, both in France (from which the story of Asterix and Obelix arose) and in England, so much so that they never completely conquered it.
Decisive confrontation of the American Revolutionary War, the battle, or rather the siege of Yorktown illustrates the decisive role played by France in American independence. If we know especially the name of La Fayette, who left very early to help the Insurgents and commanding a light division in t