In 1902, Nast received help from his longtime friend Theodore Roosevelt, who appointed him the position of U.S. counsel general for Ecuador. Nast hoped that this new position would allow him earn enough to pay off some debts and help his family.
Paleo Indians were the first
Louis Armstrong popularized it but I'm not sure if he was known as the "first"
I think it's Indus. I looked it up and it said that it 'developed in the 3rd millennium BCE, making it one of the earliest of the world's civilizations.'