Unit Two Text B ll. Related Information.(1) Christopher Columbus: Explorer Christopher Columbus(1451-1506)was an Italian explorer who sailed across the Atlantic Ocean in 1492, hoping to find a route to India(in order to trade for spices). He made a total of four trips to the Caribbean and South America during the years 1492-1504 By Julia YuanUnit Two Text B By Julia Yuan 4 II. Related Information: (1) Christopher Columbus: Explorer Christopher Columbus (1451-1506) was an Italian explorer who sailed across the Atlantic Ocean in 1492, hoping to find a route to India (in order to trade for spices). He made a total of four trips to the Caribbean and South America during the years 1492-1504