On June 19, 1862, President Lincoln signed a bill into law that forbid slavery in the western territories.This appeared to be a violation of the US Constitution based on the 1857 Dred Scott case.
Abraham Lincoln completely opposed the spread of slavery to western territories.
Territories
Slavery in the territories
Abraham Lincoln completely opposed the spread of slavery to western territories.
Because he ran for President on a platform denouncing disunion and calling for an end to slavery in the territories.
Abraham Lincoln issued the Emancipation Proclamation in 1863, which declared all enslaved people in Confederate-held territory to be freed. The Thirteenth Amendment to the United States Constitution was ratified in 1865, formally abolishing slavery in all U.S. territories.
Lincoln was nominated as the Republican Party's candidate for president. He was elected president in 1860.The answer is 'Republican Party'. One of his aims, if elected, was to prevent slavery from extending into the territories.
Slavery in the territories
Slavery was abolished in the United States territories in June 1862. Any new territory was not to have possession of any slaves after this date.
Slavery is illegal in the modern age in all countries and territories.
The Republican Party. (Lincoln became its first president, winning the election of 1860.)
slavery in the territories