Below is everything you need to know about the celebration:

1. When is National Hispanic Heritage Month celebrated in the United States?

Every year from Sept. 15 to Oct. 15

2. Why is it celebrated on those dates?

The day of Sept. 15 is significant because it is the anniversary of independence for Latin American countries Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua. In addition, Mexico and Chile celebrate their independence days on Sept. 16 and Sept. 18, respectively. Columbus Day or Día de la Raza, which is observed on the second Monday of October, also falls within this 30 day period.

3. Why is it celebrated?

Each year, Americans observe National Hispanic Heritage Month to celebrate the histories, cultures and contributions of American citizens whose ancestors came from Spain, Mexico, the Caribbean and Central and South America.

4. When did the celebration start?

The observation started in 1968 as Hispanic Heritage Week under President Lyndon Johnson and was expanded by President Ronald Reagan in 1988 to cover a 30-day period. It was enacted into law on Aug. 17, 1988.

5. Where can I learn more about National Hispanic Heritage Month?

Here are some websites dedicated to the month:

National Hispanic Heritage Month

National Archives and Records Administration

National Endowment for the Humanities

National Park Service

Smithsonian Education – Hispanic Heritage Month