[["On August 3, 1492, Italian explorer Christopher Columbus started his voyage across the Atlantic Ocean.", 160.0], ["In 1492 Columbus sailed the ocean blue, with the Nina, the Pinta and the Santa Maria. ", 52.0], ["The explorer Christopher Columbus made four voyages across the Atlantic Ocean from Spain: in 1492, 1493, 1498 and 1502.", 18.0], ["The sea at Seattle ", 0.0]]
what year did christopher columbus sail the seas
history