Title: Henry Hudson
Content:  Henry Hudson (c. undefined 1565 – disappeared 23 June 1611) was an English sea explorer and navigator during the early 17th century, best known for his explorations of present-day Canada and parts of the northeastern United States. In 1607 and 1608, Hudson made two attempts on behalf of English merchants to find a rumoured Northeast Passage to Cathay via a route above the Arctic Circle. In 1609, he landed in North America on behalf of the Dutch East India Company and explored the region around the modern New York metropolitan area. Looking for a Northwest Passage to Asia on his ship Halve Maen ("Half Moon"), he sailed up the Hudson River, which was later named after him, and thereby laid the foundation for Dutch colonization of the region. On his final expedition, while still searching for the Northwest Passage, Hudson became the first European to see Hudson Strait and the immense Hudson Bay. In 1611, after wintering on the shore of James Bay, Hudson wanted to press on to the west, but most of his crew mutinied. The mutineers cast Hudson, his son, and seven others adrift; the Hudsons and their companions were never seen again.
Title: Henry Hudson
Content:  ship around in mid-May while somewhere east of Norway's North Cape. At that point, acting outside his instructions, Hudson pointed the ship west and decided to try to seek a westerly passage through North America. They reached the Grand Banks of Newfoundland on 2 July, and in mid-July made landfall near the LaHave area of Nova Scotia. Here they encountered First Nations who were accustomed to trading with the French; they were willing to trade beaver pelts, but apparently no trades occurred. The ship stayed in the area about ten days, the crew replacing a broken mast and fishing for food. 
Title: Exploration of North America
Content:  modern-day United States (through Florida, Georgia, Alabama, Mississippi, and most likely Arkansas) After two failed attempts to reach East Asia by circumnavigating Siberia, Henry Hudson sailed west in 1609 under the Dutch East India Company. He, too, passed Cape Cod, Chesapeake Bay and the Delaware Bay, instead sailing up the Hudson River on September 11, 1609 in search of a fabled connection to the Pacific via what was actually the Great Lakes. In Hudson's fourth and final voyage, he discovered, mapped, and explored the Hudson Strait, Hudson Bay and James Bay. Other major sea-based explorers were Captain James Cook, George Vancouver, and Charles Wilkes.
Title: Henry Hudson
Content:  According to Thomas Edge, "William [sic] Hudson" in 1608 discovered an island he named "Hudson's Tutches" (Touches) at 71° N, the latitude of Jan Mayen. However, records of Hudson's voyages suggest that he could only have come across Jan Mayen in 1607 by making an illogical detour, and historians have pointed out that Hudson himself made no mention of it in his journal. There is also no cartographical proof of this supposed discovery. Jonas Poole in 1611 and Robert Fotherby in 1615 both had possession of Hudson's journal while searching for his elusive Hold-with-Hope—which is now believed to have been on the east coast of Greenland—but neither had any knowledge of any discovery of Jan Mayen, an achievement which was only later attributed to Hudson. Fotherby eventually stumbled across Jan Mayen, thinking it a new discovery and naming it "Sir Thomas Smith's Island", though the first verifiable records of the discovery of the island had been made a year earlier, in 1614.
Title: Henry Hudson
Content:  In 1610, Hudson obtained backing for another voyage, this time under the English flag. The funding came from the Virginia Company and the British East India Company. At the helm of his new ship, the, he stayed to the north—some claim he deliberately stayed too far south on his Dutch-funded voyage—reached Iceland on 11 May, the south of Greenland on 4 June, and rounded the southern tip of Greenland. On 25 June, the explorers reached what is now the Hudson Strait at the northern tip of Labrador. Following the southern coast of the strait on 2 August, the ship entered Hudson Bay. Excitement was very high due to the expectation that the ship had finally found the Northwest Passage through the continent. Hudson spent the following months mapping and exploring its eastern shores, but he and his crew did not find a passage to Asia. In November, however, the ship became trapped in the ice in James Bay, and the crew moved ashore for the winter.
Title: Hudson Valley
Content:  In 1497, John Cabot traveled along the coast and claimed the entire country for England; he is credited with the Old World's discovery of continental North America. Between then and about 1609, exploration took place around New York Bay, but not into the Hudson Valley. In 1609, the Dutch East India Company financed English navigator Henry Hudson in his attempt to search for the Northwest Passage. During this attempt, Henry Hudson decided to sail his ship up the river that would later be named after him. As he continued up the river, its width expanded, into Haverstraw Bay, leading him to believe he had successfully reached the Northwest Passage. He docked his ship on the western shore of Haverstraw Bay and claimed the territory as the first Dutch settlement in North America. He also proceeded upstream as far as present-day Troy before concluding that no such strait existed there.
Title: Age of Discovery
Content:  on behalf of English merchants to explore a prospective Northeast Passage to India, English mariner Henry Hudson, under the auspices of the Dutch East India Company (VOC), explored the region around present-day New York City, while looking for a western route to Asia. He explored the Hudson River and laid the foundation for Dutch colonization of the region. Hudson's final expedition ranged farther north in search of the Northwest Passage, leading to his discovery of the Hudson Strait and Hudson Bay. After wintering in James Bay, Hudson tried to press on with his voyage in the spring of 1611, but his crew mutinied and they cast him adrift.
Title: Hudson Bay
Content:  The search for a western route to Cathay and the Indies, which had been actively pursued since the days of Columbus and the Cabots, in the latter part of the 15th century, directly resulted in the first sighting of Hudson Bay by Europeans. English explorers and colonists named Hudson Bay after Sir Henry Hudson who explored the bay beginning August 2, 1610 on his ship Discovery. On his fourth voyage to North America, Hudson worked his way around Greenland's west coast and into the bay, mapping much of its eastern coast. Discovery became trapped in the ice over the winter, and the crew survived onshore at the southern tip of James Bay. When the ice cleared in the spring, Hudson wanted to explore the 
Title: Henry Hudson
Content:  The gulf or bay visited by Hudson is three times the size of the Baltic Sea, and its many large estuaries afford access to otherwise landlocked parts of Western Canada and the Arctic. This allowed the Hudson's Bay Company to exploit a lucrative fur trade along its shores for more than two centuries, growing powerful enough to influence the history and present international boundaries of western North America. Hudson Strait became the entrance to the Arctic for all ships engaged in the historic search for the Northwest Passage from the Atlantic side – though modern voyages take more northerly routes. Along with Hudson Bay, many other topographical features and landmarks are named for Hudson. The Hudson River in New York and New Jersey is named after him, as are Hudson County, New Jersey, the Henry Hudson Bridge, the Henry Hudson Parkway, and the town of Hudson, New York. The unbuilt Hendrik Hudson Hotel in New York, planned circa 1897, was also to have been named after him. Instead, ten years later, an apartment building bearing the name had been constructed.
Title: Henry Hudson
Content:  June, coasting it northward until 22 June. Here the party named a headland "Young's Cape", a "very high mount, like a round castle" near it "Mount of God's Mercy" and land at 73° north latitude "Hold with Hope". After turning east, they sighted "Newland"—i.e. Spitsbergen—on 27 May, near the mouth of the great bay Hudson later simply named the "Great Indraught" (Isfjorden). On 13 July, Hudson and his crew estimated that they had sailed as far north as 80° 23′ N, but more likely only reached 79° 23′ N. The following day they entered what Hudson later in the 

Question: what lands did henry hudson discover?
Answer: Hudson Bay.