Amazon opened its first Amazon Go Grocery store in Seattle, Washington.
The 1991 Best Picture, 'Dances With Wolves,' premiered in Washington, D.C.
Around 200,000 people marched through Washington, D.C. streets to fight for gay and lesbian civil rights.
Up to 125,000 people marched in the first LGBT civil rights march in Washington, D.C.
Two trains crashed in a snowstorm in Wellington, Washington, USA, claiming the lives of 96 people.
Washington became the 42nd state to join the United States of America.
