Assuming you mean Ticonderoga, Americans captured it to strip the fort of its artillery for the siege of Boston.
The bombing of Fort Sumter caused the battle!
the election of Lincoln and his want to free slaves
Lincoln wanting south Carolina to be a free state.
it caused the civil war to start
The Confederates fired the first shots at Fort Sumter.
The conflict that resulted in the battle over Fort Sumter ended with the fort's Union commander, Anderson, surrendering to forces led by Confederate commander Beauregard. Anderson had little choice as all relief efforts to aid the fort by Lincoln were turned back.
the battle of fort Ticonderoga was in 1775
at fort Stanwix! It was the battle of oriskany
There was a battle for Fort Sumter in the American Civil War.
Battle of Fort Walker happened in 1864.
Battle of Fort Beauséjour happened in 1755.
Battle of Fort Frontenac happened in 1758.