Classifier Instance:

Anchor text: Northwest Passage
Target Entity: Northwest_Passage
Preceding Context: In the 18th century, there was strong interest in discovering a
Succeeding Context: that would permit navigation between the Atlantic (or inland North America) and the Pacific Ocean. Many ships in the area, especially those under Spanish and British command, searched the northwest coast for a large river that might connect to Hudson Bay or the Missouri River. The first documented European discovery of the Columbia River was that of Bruno de Heceta, who in 1775 sighted the river's mouth. On the advice of his officers, he did not explore it, as he was short-staffed and the current was strong. He considered it a bay, and called it Ensenada de Asunci├│n. Later Spanish maps based on his discovery showed a river, labeled Rio de San Roque, or an entrance, called Entrada de Hezeta. Following Heceta's reports, British maritime fur trader Captain John Meares searched for the river in 1788 but concluded that it did not exist. He named Cape Disappointment for the non-existent river, not realizing the cape marks the northern edge of the river's mouth.
Paragraph Title: New waves of explorers
Source Page: Columbia River

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