there were 13 when he became president and 3 moreadded while in office16 altogether.
I think 13
There were 50 states, and 50 stars on the flag, when Jimmy Carter became president.
There were 15 stars in the American flag while George Washington was president.
20 stars
13
13.
There are three stars on Washington DC's flag.
When James Monroe became president in 1817, there were 20 stars on the American flag. This was because three new states (Indiana, Louisiana, and Mississippi) had joined the Union since the previous change to the flag's design. Each state was represented by a star on the flag.
When Taft became President, the US flag had 46 stars. In 1912, New Mexico and Arizona became states 47 and 48.
When Thomas Jefferson was president there were fifteen stars ont the flag.
The US flag had 31 stars while Pierce was President.
Abraham Lincoln became President of the United States on March 4, 1861, at which point there were 33 stars on the United States flag. As of July 4 of the same year, a new flag was introduced, with 34 stars, due to Kansas being added to the union.