Which battle marked the first significant victory for the Union during the Civil War? O Chancellorsville
O Bull Run
O Fredericksburg
O Antietam

ANTIETAM

Explanation:

After twelve hours of combat, the roar of battle started to fade away. ... Most importantly, Union victory at Antietam provided President Abraham Lincoln the opportunity he had wanted to announce the Emancipation Proclamation, making the Battle of Antietam one of the key turning points of the American Civil War

answer; william penn's approach made the colony diverse by attracting many types of people and religions;