They declared independence from mexico
Mexico
From Mexico.
1821
1810
This is a trick question. Mexico didn't declare independence until 1810 (from Spain).
It didn't. Mexico was never fully conquered by France.
Anna's attempt to stop US immigration caused Texans to declare their independence from Mexico. Anna enforced custom duties and abolished slavery to deter settlers.
Mexico has its own "Independence Day", on the date of its independence, September 16th.
They declared their independence because they were no longer satisfied with the original settlement agreement they had made with the Government of Mexico and they expected support from the U.S.
Just once - September 16, 1810.
September 15 (1810).