Stratford-upon-Avon’s lucrative tourist industry hinges on a claim that William Shakespeare’s 1564 place of birth is open for visitors. New York Times writer Elizabeth Winkler goes on an entertaining journey through the doors of the Bard’s alleged birth home in the small West Midlands town, where she ponders the authenticity of its historic significance. “Stratford permits—indeed encourages—one of the biggest frauds in England to rage unchecked,” a journalist for the Daily Mail wrote in 1965. And indeed, the question of whether the tourist attraction, key to Stratford’s $315 million tourism in…