The party platform is written every four years
Leading to the Emancipation Proclamation.
The Battle of Antietam was one of the bloodiest in American history. The war was photographed and many letters were sent home of the horrors seen at the battle.
The battle itself was a stalemate but the Union claimed victory. The battle kept Confederate forces in Maryland and prevented the war from entering the Union states. This convinced Lincoln to issue his Emancipation Proclamation which freed slaves in Confederate states. The proclamation was symbolic more than it had any actual effect. It gave the bloody war a moral reason to continue the fight. From that point the war became about unifying the Union--a Union that would be without slavery.
<span>Japan was isolated from Europe</span>
John Brown, an abolitionist,
leads a small group on a raid against a federal armory in Harpers Ferry,
Virginia, currently known as West Virginia, in a venture to start an armed
slave revolt and to destroy the institution of slavery.
<span>Hope this helps!</span>
The cause of the feudal system was most likely the rise of the imperial Daimyo and the Shogun. The Shogun were Japanese warlords, pretty much. The Daimyo were the royal families. The feudal system was a social hierarchy that had the Japanese emperor at the top and the merchants in the bottom.