Answer:
The Fredonian Rebellion (December 21, 1826 – January 23, 1827) was the first attempt by Anglo settlers in Texas to secede from Mexico. The settlers, led by Empresario Haden Edwards, declared independence from Mexican Texas and created the Republic of Fredonia near Nacogdoches.
End date: January 23, 1827
Part of: Texas Revolution
Start date: December 21, 1826