Henrietta was an American astronomer who discovered the relation between the luminosity and the period of Cepheid variable stars.
This Tribute to our troops was created by Lizzie Palmer, a young girl of 15. Watch it and pass it on, and never forget those who fight for us.
Show off your pride in American history by choosing one of these classic patriotic costumes.
Even though Independence Day wasn’t celebrated in America until after the War of 1812, it remains the single most important holiday in American history. On July 4th, 1776, the United States claimed their Independence from England.
Flag etiquette and the Flag Code.
4th of July Learning Links