- He incorrectly thought the spiceries were coming from northern Asia
- Because a degree of longitude is shorter the further one is from the equator, the voyage from western Europe to eastern Asia would be shorter on higher latitudes.
King Henry VII gave him a grant "full and free authoritie, leave, and power, to sayle to all partes, countreys, and seas, of the East, of the West, and of the North, under our banners and ensignes, with five ships ... and as many mariners or men as they will have in saide ships, upon their own proper costes and charges, to seeke out, discover, and finde, whatsoever iles, countreyes, regions or provinces of the heathen and infidelles, whatsoever they bee, and in what part of the world soever they be, whiche before this time have beene unknowen to all Christians."
Cabot went to Bristol to make the preparations for his voyage. Bristol by then was the second-largest seaport of England, and during the past years (from 1480 onwards) several expeditions had been sent out to look for Hy-Brasil, an island that would lay somewhere in the Atlantic according to Celtic legends. Some people think Newfoundland may have been found on (one of) these voyages.
Cabot left with only one vessel, the Matthew, a small ship (50 tons), but fast and able. The crew consisted of only 18 people. He departed on 20 May, 1497 (he had also made a voyage in 1496, but got no further than Iceland). He sailed to Dursey Head, Ireland, from where he sailed due west to Asia - or so he thought. He landed on the American eastcoast at 24 June, 1497. His precise landing-place is a matter of much controversy. He went ashore to take possession of the land, and explored the coast for some time, probably departing at 20 July. On the homeward travel his sailors thought they were going too far north, so Cabot sailed a more southernly course, reaching Brittany instead of England. On 6 August he arrived back in Bristol.
Back in England, Cabot got well rewarded (a pension of 20 pounds a year), and a patent was written for a new voyage. The next year, 1498, he departed again, with 5 ships this time. Except for one of the ships, that soon after departure made for an Irish port because of distress, nothing was heared of the expedition, or of John Cabot, ever since.
The location of Cabot's first landfall is still unknown, because of lack of evidence. Many experts think it was on Cape Breton Island, but others look for it in Newfoundland, Labrador or Maine. The truth may never be known.
John's son Sebastian later made a voyage to North America, looking for the Northwest Passage (1508), and one to repeat Magellan's voyage around the world, which ended up looking for silver along the River Plate (1525-8).
In 1498-1500 a few Portuguese travelers, Miguel and Gaspar Corte-Real being the most famous participants, visited Greenland, Labrador and Newfoundland. In 1501-5 an English syndicate, consisting of 3 Azoreans and 2 English traders, made voyages to Newfoundland. From 1504, if not before, Breton, Basque, Portuguese and English fishermen crossed the ocean to catch fish on the Newfoundland banks.
The original version can also be found at http://www.win.tue.nl/~engels/discovery/cabot.html. Copied with permission.