United-States Flag: Meaning and History

History of the flag
The first flag of the United States was raised in 1776. A year later, the flag featured 13 stripes and 13 stars.
Today, the flag is commonly known as the 'Stars and Stripes' (or 'Star-Spangled Banner').
What do the elements of the flag mean?

The current version has 50 stars, one for each state of the United States.
Blue stands for vigilance, perseverance, and justice.
The 13 stripes honor the 13 colonies that rebelled against the United Kingdom. Red refers to valor and strength.
