Question

1. this map shows state and territorial borders of the united states in 1861. united states, 1861 which characteristic was shared by the darker - shaded states on this map? they were states that joined the confederacy before the firing on ft. sumter. they were slave states that remained in the union during the civil war. they were states that voted against declaring war on the confederacy. they were slave states that supported abraham lincoln in the 1860 presidential election.

Explanation:

The darker - shaded states in the 1861 US map are the border states (like Missouri, Kentucky, Delaware, Maryland). These were slave states that did not secede and remained in the Union during the Civil War. The first option is wrong as they didn't join the Confederacy. The third option is not accurate as their main characteristic was remaining in the Union as slave states. The fourth option is wrong as Lincoln was not supported by slave states in the 1860 election.

Answer:

They were slave states that remained in the Union during the Civil War.