Lincolnshire Day is observed in Lincolnshire, a county in the East Midlands of England, every October 1. This day commemorates the anniversary of the Lincolnshire Rising, a Catholic uprising against the English Reformation and the dissolution of monasteries that began in 1536. The uprising started at St James’ Church in Louth, protesting the closure of Louth Park Abbey, and gained support from nearby towns before being suppressed just days later. Established in 2006, Lincolnshire Day honors the county's history, culture, and traditions, as well as notable figures from Lincolnshire, including Isaac Newton, Alfred Tennyson, and Margaret Thatcher. The day serves as a reminder of the region's past and is celebrated through various local events and activities.