History of Galveston, Texas Harbor and headed for Havana, becoming the final Confederate ship to slip through the blockade from any Southern port. In the late 1890s, the Fort Crockett defenses and coastal artillery batteries were constructed in Galveston and along the Bolivar Roads. Juneteenth, which is the oldest nationally celebrated commemoration of the ending of slavery in the United States, owes its origins to the announcement of the Emancipation Proclamation upon the return of Union forces to Galveston in 1865. Galveston was the first city in Texas to provide a secondary school and public library for African Americans. At the end of the
Galveston Island would hold until nearly the end of the 19th century. Galveston for a time before the American Civil War was the largest cotton shipping port in the world and the second-largest port for immigration in the United States. In the mid-19th century, it was a major port of entry for the many Germans who entered the state. During the Civil War, the Union army seized control of the island from the South for a few months during early 1863. Confederate forces commanded by John B. Magruder expelled them from the island, and the Confederates controlled it for the remainder of