Get all the news you need in your inbox each morning. Here's what to know about Flag Day and the American flag, including its origins, who designed it, and how to honor the flag when flying it.

Over the next few years, as many as 36 state and local governments adopted the annual observance. For over 30 years, Flag Day remained a state and local celebration.

Some U.S. state flags were ordered to be raised during Donald Trump's swearing-in, while others will remain at half-staff for the late Jimmy Carter.