German-born political cartoonist Thomas Nast gave America some of its most enduring symbols: the Republican elephant, the Democratic donkey, and Uncle Sam.
In the mid-twentieth century, the National Foundation for Infantile Paralysis (the predecessor to today’s March of Dimes) pioneered a new approach to philanthropy, raising money a dime at a time from millions of small donors.
Hoover Dam was called one of the greatest engineering works in history. 5,000 working men and their families came to live in the Nevada desert. These are men whi built the dam.