Slavery exists, but definitely not as much as it did in the 18-1900's. In the 1800's having slaves was considered common. The 13th-15th amendments and Civil War helped end slavery for good, but the most recent form it has taken is human trafficking. Human trafficking is illegal and not often found in America, but in other countries it may happen more often. In conclusion, there is still a form of slavery alive today, but it isn't as common or legal as it was from the 1800's.
Hope that helps!