With the explorations of Columbus on his first and his three later voyages (in 1496, 1498, and 1502) we are less concerned than with the first voyage itself as an illustration of the problems and dangers faced by the navigator of the time, and with the effect of the discovery of the new world upon Spain's rise as a sea power. The three caravels in which he sailed were typical craft of the period. The Santa Maria, the largest, was like the other two, a single-decked, lateen-rigged, three-masted vessel, with a length of about 90 feet, beam of about 20 feet, and a maximum speed of perhaps 6-1/2 knots. She was of 100 tons burden and carried 52 men. The Pinta was somewhat smaller. The Niña (Baby) was a tiny, half-decked vessel of 40 tons. Heavily timbered and seaworthy enough, the three caravels were short provisioned and manned in part from the rakings of the Palos jail.