What do the 13 stripes on the US flag represent?

Question

The flag of which country, consisting of three horizontal stripes of red, white and blue (almost identical to that of the Netherlands), was first used in 1845 and officially adopted on June 23, 1972?

Answer 1

13 Stripes Represent The Thirteen British Colonies

13 stripes represent the thirteen British colonies that declared independence from the Kingdom of Great Britain, and became the first states in the Union.
The Thirteen British colonies are:

1. Delaware
2. Pennsylvania
3. New Jersey
4. Georgia
5. Connecticut
6. Massachusetts Bay
7. Maryland
8. South Carolina
9. New Hampshire
10. Virginia
11. New York
12. North Carolina
13. Rhode Island and Providence Plantations

Answer 2

The 50 stars on the flag represent the 50 states of the United States of America, and the 13 stripes represent the thirteen British colonies that declared independence from the Kingdom of Great Britain, and became the first states in the Union.