Updated

A century and a half after the Civil War ship the USS Monitor sank, two unknown crewmen found in the ironclad's turret have been buried at Arlington National Cemetery.

Friday's burial may be the last time Civil War soldiers are buried at the cemetery.

The Monitor made history when the Union ship fought the Confederate CSS Virginia in the first battle between two ironclads on March 9, 1862. The battle was a draw.

The Monitor sank about nine months later off North Carolina. Sixteen sailors died.

In 2002, the ship's turret was raised from the ocean floor. The skeletons of the two crew members were found inside. Researchers tried to identify the men using DNA and other methods but were only able to narrow down the possibilities to six people.