Posted in NY Post Construction workers unearth 300-year-old cannon while on a routine dig in the UK April 6, 2026 The cast-iron cannon likely dates to the late 17th century or early 18th century. https://nypost.com/2026/04/06/science/construction-workers-unearth-300-year-old-cannon-while-on-a-routine-dig-in-the-uk/