Similar questions: reliable source discoverers geographically nowadays.
It depends on the definition of first explorerers. Native Americans travel here in their migrations. But they did not tell anyone, so their discovery remained unknown.St Brendan-Welsh, Madoc, prince of Wales-Welsh, Leif Erickson-Viking, but these men left no written records, there is info placed into their legends, oral at first.
The Vikings may have heard of the Welsh legends & set out to look at things for future targets of their attacks. Phonecians & Greeks, Romans, Ancient Egyptians, are thought to have possibly made it to at least North America, though not necessarily the US.It is possible there was a Chinese expedition to North America. The Spanish, French, & the Brits were the first to see the land mass & placed that knowledge in their ship's logs. After the explorers sailing for these countries reported their discoveries, the Euros never forgot about the Western Hemisphere.
Of the latter three, it was probably the French for a couple of reasons.By French I mean Bretons, they were fishing in the Great Banks area. They kept it a secret to reduce others from fishing in their discovery. The Bretons could have heard about the voyages of St Brendan & Prince Madoc.As they were all Celtic or Gaels.
This would place their first fishing expeditions in the mid to late 1400s. This is probably the basis for the Roman Catholics eating fish on Fridays. One reason I've heard is that it was done to support the new fishing industries.
The educated people in that time period in that time period may have known about the benefits of eating fish & this could be another reason.
Hard to say Hard to say, there's evidence people walked across the Bering strait long ago, plus Chinese and Polynesian boats on the west coasts.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.