When did guatemala become an independent country?

Question

I need to know

Answer 1

Libertad! 15 de septiembre de 1821.

Answer 2

September 15, 1821 is the independence from Spain.

Answer 3

On September 15, 1821, the five countries in Central America became independent from Spain; that´s why these five countries  celebrate their Independence on the same day.  Then, they got joined to Mexico that was already an independent country, and were released on 1823.  So, many people says that this year (1823) is the year of the real Independence.  But the official date is the first one.