Image: Wikimedia Commons, Public Domain
USA national flag has thirteen stripes of red alternating with white. The red is at the top and the bottom. In insignia, the white is on the left and right. The 13 stripes represent the 13 original states of the early Union. The blue rectangle with 50 white five-pointed stars, one for each American state, is called the union — for the country as today.
The Flag has changed since the early times. Betsy Ross and 13 Star are historic American flags. Today, the Flag other names may be the Stars and Stripes, the Old Glory, and the Red, White, and Blue. The Star Spangled Banner also is the name of the American national anthem.
The 13 Star

Betsy Ross

There is a code of conduct concerning the Flag. The Federal Flag Code has guidance.
There are a few special days on which many people fly the Flag in the USA. We put the month before the day, to read the date in American English.
New Year’s Day, January 1
Inauguration Day, January 20
Abraham Lincoln’s Birthday, February 12
Washington’s Birthday (the President’s day), third Monday in February
Easter Sunday, (variable)
Mother’s Day, second Sunday in May
Armed Forces Day, third Saturday in May
Memorial Day (half-staff until noon), the last Monday in May
Flag Day, June 14
Independence Day, July 4
Labor Day, first Monday in September
Constitution Day, September 17
Columbus Day, second Monday in October
Navy Day, October 27
Veterans Day, November 11
Thanksgiving Day, fourth Thursday in November
Christmas Day, December 25
State birthdays (days of admission) and holidays: each state individually.