Fort Taylor was constructed in 1845 as part of the Third Tier System of Defense which called for the establishment of masonry fortresses constructed along America’s coastline to prevent Sea attacks on the United States. This fort was an important defensive structure in the United States because of its command over the waters over the Straits of Florida and of the Gulf of Mexico. When completed, the fort was three stories tall, held and 140 cannon and was home to almost 450 soldiers. Fort Taylor remained under federal control during the Civil War and was the headquarters of the US Navy East Gulf Coast Blockading Squadron. The current form of the fort is largely the result of alterations made in 1898, including the removal of the upper two tiers, filling case-mates with sand and obsolete ordinance, and construction of modern rifled artillery emplacements Battery Adair and Battery Osceola. Fort Taylor continued to defend the United States during the Spanish American War, World War I and World War II. The Fort’s service to the nation ended in 1947. Fort Taylor is listed on the National Register of Historic Places and is a Historic National Landmark.