USA HISTORY

Detailed explanation-1: -Hostilities with Mexico and the Indians reached a settlement, and Texas was admitted as a state on December 29, 1845. The Republic of Texas, after nine years, eleven months, and seventeen days, was no more.

Detailed explanation-2: -The theme of independence has recurred throughout the history of Texas, which was a republic from 1836–45. But the Civil War established that a state cannot secede.

Detailed explanation-3: -On December 29, 1845, Texas became the 28th state in the United States. Formerly part of Mexico, Texas had been an independent country since 1836. Since its independence, Texas had sought annexation by the U.S. However, the process took nearly 10 years due to political divisions over slavery.