Why did christopher columbus ventured into the caribbean in 1492

He was going to try to get important spices from India, but instead, he found America and discovered that the earth is round. (he found america, because he didn't have a map and he went  in the wrong direction)
 Here is a saying to help u remember what year he ventured in( i know this isn't what u requested, but I thought it might help u in the future, u might already know the saying) : Mr. Columbus sailed the ocean blue, in the year of 1492! (say it while clapping to the rhythm)
    
    Hope this helped. ^-^

There’s no picture, but i’ll give you a few of expeditions. lewis and clark began in 1804, louisiana purchase 1802, james town 1607