WASHINGTON, April 22 (UPI) -- The U.S. Postal Service celebrated Earth Day on Tuesday with the first sales of a stamp honoring government climate change research.
In another groundbreaking move this week, the Postal Service released the artwork Monday for a stamp honoring Harvey Milk, the first openly gay elected official in the United States. Milk, who was assassinated in 1978, is the first openly gay official to be honored with a stamp.