The only copy in Canada of one of the most celebrated books ever published in the English language, Mr. William Shakespeares comedies, histories, & tragedies: published according to the true originall copies, otherwise known as the 1623 First Folio, is just one of many historical printed books on display this Saturday, April 23, at the Thomas Fisher Rare Book Library. The date is significant: it was exactly 400 years ago – April 23, 1616 – when William Shakespeare died. The day is also celebrated as UNESCO World Book Day. The library will be open from 10 am to 5 pm, with tours led by the exhibition's lead curator, Scott Schofield.