The correct answer is death of Queen Elizabeth.
When Queen Elizabeth died in 1603, after having ruled for 44 years, the Puritans grew even more unhappy than they were before. She was succeeded by James I, who brought many changes to the church, which obviously the Puritans weren't too happy about.
Between 1775 and 1787, the Western territories faced several challenges, including a lack of roads and competition with Native Americans for land and hunting grounds.
One. The Battle of Antietam.
The reason I say one is because the Confederacy has better War Generals, they had a more experienced militia. That’s why they were undefeated for so long. But The battle of Antietam of 1862 was the battle the Union, the North, celebrated because of their first victory against the Confederacy, the South.