The Spaniards first brought horses to the Americas in the 16th Century (1500s). They multiplied outside of captivity as "mustangs". The plains Native Americans who had previously pulled their belongings with travoy (travois) with women then used horses instead, increasing the range of their nomadic life. The Plains Indians developed into the world's best horse cavalry, capable of raiding hundreds of miles into foreign lands during seasons of the full moon. In Spanish, Mexican, Texas and US history, the Comanche are the most famous.