How did Black women undermine the system of slavery in similar and different ways (by escaping)?

Many enslaved African Americans defied the slave system by leaving it. Escape attempts were dangerous and uncertain, and slaveholders posted substantial rewards for captured fugitives, but every year thousands of enslaved people fled to free states or territories. On the way, they were aided by enslaved people on nearby farms and plantations and by networks of free African Americans and European Americans. By 1860, an estimated 400,000 people had escaped from slavery.