On December 31st, 1759, Arthur Guinness signed a 9,000-year lease and started brewing ales at the St. James’s Gate Brewery in Dublin. The harp, which serves as the Guinness emblem, is based on a famous 14th-century Irish harp known as the “O’Neill” or “Brian Boru” harp which is now preserved in the Library of Trinity College Dublin. The harp device has been synonymous with Guinness since 1862 when it was used as a symbol on the first bottle label for Guinness and was registered as a trademark in 1876. Guinness’s modern logo rendition was created by branding firm Jones Knowles Ritchie in 2005.