In 1845, Texas stood at a major crossroads. It had been an independent republic for nearly a decade.
That summer, leaders in Texas met to move the republic toward joining the United States. The choice would change Texas and the nation.
Annexation was not a small legal step. It touched land, money, war, slavery, and national power.
Texas Had Been Standing Alone
Texas won independence from Mexico in 1836. It then became the Republic of Texas.
The new republic had serious problems. It carried debt. Its border with Mexico was disputed. Mexico did not accept the loss of Texas.
Many Texans wanted the safety and trade that came with joining the United States. But annexation also raised the risk of war.
The issue also fed a national fight over slavery and western growth. Other border changes, such as the 1821 transfer of Florida, show how often U.S. growth changed both maps and lives.
The Path to Annexation
The U.S. Senate first rejected an annexation treaty in 1844. The issue did not end there.
In February 1845, Congress approved annexation by joint resolution. The U.S. Senate’s Texas timeline records the close Senate vote and the steps that followed.
Texas leaders then had to accept the offer and prepare a state government. The Austin convention helped do that work.
The Austin Convention
Delegates met in Austin in July 1845. They worked on a state constitution and the path into the Union.
That kind of work mattered because a state needed rules for its own government. Our article on New York’s close Constitution vote shows another moment when political choices shaped the nation’s structure.
Texas later became the 28th state on December 29, 1845.
The Human Cost of Expansion
The move into the Union had many effects. Anglo settlers, Tejanos, enslaved people, Native nations, soldiers, farmers, and merchants all lived with the results.
Some people gained power or land. Others lost land or faced new laws. Annexation also helped lead to war between the United States and Mexico.
The same pattern of land, law, and power can be seen in the story of Kaskaskia and the western frontier.
Texas Then and Now
Texas still has a strong sense of identity. Its size, economy, and politics keep it at the center of national debate.
That long story reaches into modern life too. Tuars looks at one current issue in its guide to the Texas power grid and summer demand.
Readers who want a simple reference can also browse a Texas history book on Amazon.
The annexation vote mattered because it ended one chapter and opened another. Texas moved from republic to state, and the whole country felt the change.