Is there any noticeable bias in the civil war?

Yes, there is a noticeable bias in the civil war. The South was biased against the North and the North was biased against the South.

Explanation:

Whenever historians write down history, some sort of biases always involves their writing. Historians when writing history have a bias that Lincoln ''freed the slaves'' even though that was not the case. And the South is usually painted as the evil side.

The Civil war caused damage to millions of people and their livelihood. It took decades to recreate what had been lost due to the war.

the passage of a strict fugitive slave law