Henry Hudson was an English navigator and explorer who made several voyages in search of a Northwest Passage to Asia. Although he never found the passage, he made several important discoveries during his explorations. Here are some of the things that Henry Hudson discovered:

• Hudson River: On his third voyage in 1609, Hudson sailed for the Dutch and discovered a beautiful area that is now called New York City. He then sailed up the river all the way to the area now called Albany.

• Hudson Strait: On his fourth and last voyage in 1610, Hudson sailed through a small river that was supposed to lead to the Pacific Ocean but it did not. Instead, it led to a huge bay, which is now called the Hudson Bay. The strait that leads to the Hudson Bay is also named after Henry Hudson.

• Hudson Bay: During his fourth voyage, Hudson sailed through the Hudson Strait and entered the Hudson Bay in early August 1610. He then followed the east coast southward, rather than striking boldly westward. Finding himself in James Bay at the southernmost extremity of Hudson Bay and with no outlet to the Pacific to be found, Hudson cruised aimlessly until winter overtook him.

In addition to these discoveries, Hudson also explored parts of the Arctic and made contact with Indigenous peoples during his voyages.