Historiography
Knerr (1989) has reviewed the main trends in historiography over five centuries. For 150 years writers relied heavily on Petruccio Ubaldini's A Discourse Concernye the Spanish Fleete Invadinye Englande (1590), which argued that God decisively favoured the Protestant cause. William Camden (1551-1623) pointed in addition to elements of English nationalism and the private enterprise of the sea dogs. He also emphasized that the Duke of Medina Sidonia was an incompetent seaman. David Hume (1711–76) praised the leadership of Queen Elizabeth. However the Whig historians, led by James A. Froude (1818–94), rejected Hume's interpretation and argued that Elizabeth was vacillating and almost lost the conflict by her unwillingness to spend enough to maintain the fleet. Scientific modern historiography came of age with the publication of two volumes of primary documents by John K. Laughton in 1894. This enabled the leading naval scholar of the day Julian Corbett (1854-1922), to reject the Whig views and turn attention to the professionalization of the Royal Navy as a critical factor. Twentieth century historians have focused on technical issues, such as the relative power of English and Spanish guns and the degree of credit due Francis Drake and Charles Howard.
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