Flag Day is celebrated every year on June 14. The Second Continental Congress passed the Flag Resolution that designated the first official American flag in 1777. The object is the most iconic symbol of the United States of America.

The occasion is a nationwide observance, but it is not a public holiday. That means government offices, banks and schools will not be closed. In honor of the holiday in 2018, here are seven interesting things that people might not know about the American flag.

1. The first flag

Betsy Ross has been credited with sewing the first flag. In fact, the original one with 13 stars and 13 stripes has become known as the "Betsy Ross flag." The 13 stars and stripes represent the 13 original colonies that became the first states.

2. Different American flags

Over the years, there have been 27 different American flags. The one that is used today has 50 stars along with the original 13 stripes. Red horizontal stripes are at the top and bottom with white stripes separating them. The blue square is located in the upper left-hand corner. Only the number of white stars has changed over the years to indicate the number of states in the union. Today, there are 50 white stars. The rows start out with six stars and alternating rows have five stars. The bottom row is the same as the top row with six stars.

3. Origin of the holiday

The American flag has been celebrated since 1885. However, it was not until 1916 that President Woodrow Wilson designated the day as an official holiday.

4. Flags on the moon

Flags are displayed in and on government buildings, schools, churches and on some houses. They are located as far away as on the moon. In fact, there are six American flags on the moon. Each one was placed there by the crews of Apollo 11, 12, 14, 15, 16, and 17.

5. Respecting the flag

The American flag should always be respected. Care should be taken to make sure that the stars are never shown pointing down. The only time that should happen is when the nation is in dire distress. The flag should never be allowed to touch the ground or anything beneath it. People should never wear it, use it for bedding, or as drapery, according to the U.S. Flag Code.

6. How to celebrate

People in the United States usually celebrate Flag Day by displaying the flag on their houses and on public buildings. There will be ceremonies and services with an emphasis on the flag. Teachers will take advantage of the holiday and teach lessons and have some fun flag-related activities for their students.

Framingham, Massachusetts will celebrate by having a Flag Day Parade for its residents.

7. Raising the flag

Under normal circumstances, the flag should be hoisted to the top of the flagpole. It is lowered and remains at half-staff during times of local or national tragedy to indicate mourning, distress, and respect. The request must come from the President of the United States for a national mourning or from the governor of a particular state for a state remembrance.