What are the winds that help saliors travel from Europe to Americans?

The prevailing winds that helped sailors travel from Europe to America are the westerlies. These winds blow from the west to the east and are strongest in the mid-latitudes. Sailors would use these winds to their advantage by sailing eastwards with the wind behind them. This allowed them to make faster and more efficient journeys across the Atlantic Ocean.

The westerlies are caused by the Earth's rotation. As the Earth rotates, it creates a force called the Coriolis effect. This force deflects winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The Coriolis effect is responsible for the prevailing westerlies in the mid-latitudes.