David B. Quinn 
England and the Discovery of America, 1481-1620 [PDF ebook] 
From the Bristol Voyages of the Fifteenth Century to the Pilgrim Settlement at Playmouth: The Exploration, Exploitation and Trial-and-Error Colonization of North America by the English

First published in 1974, England and the Discovery of America places the early explorations of the English in North America in the broad context of 15th and 16th century history. Marshalling evidence that cannot be pushed aside and sifting a mass of fascinating detail (including problems of cartography and the Vinland Map controversy), Professor Quinn presents circumstantial indications pointing to 1481 as the date or the discovery of America by Bristol voyagers – fishermen seeking new sources of cod, and merchant sailors with maps carrying promise of unexploited Atlantic islands. Whereas England did little to follow up her early lead, Quinn demonstrates that English initiatives from the 1580s onward, though slow, were of great importance. He brings to life the men involved in a variety of rash and heroic experiments in colonization and casts new light on their fates. He makes it clear that it was this very profusion of trial and error and trail again, as well as the conviction that settlement in temperate latitudes in North America could be effective if tenaciously enough sought, that enabled the English to strike and maintain routes in their new American world. This book will be of interest to students of English history, American history, colonial history and naval history.