Clovis technological complex - Distinctive spear points
Neanderthals extinct in Europe - Bones stop appearing in the archaelogical record
Earliest modern humans emerge - Their skulls found at Herto, Ethiopia
Homo sapiens cross into Asia - Tools found at Jwalapuran, India
If you mean the first American flag then it's on display at Prospect Hill.
it was everybody except the NAACP (National Association of the Advanced Colored People) Some were stuck in the frame of mind that nothing was going to change so just leave it be, some were for it and some were against it. so its a 50/50 toss up.
The correct answer to this open question is the following.
The need for raw materials led to further state expansion, following the Manifested Destiny that was the belief for many Americans that God's will was for America to expand its territories. After the Louisiana Purchase of 1803, US President ordered the Lewis & Clark expedition to the new Western territories. When the exédition was over, those explorers went to Washington D.C. to inform the President about the results. That is when Jefferson authorized people to settle those territories, work the land, and exploit the many raw materials and natural resources to get a profit.
