Inside History on Instagram: "On June 13, 1981, during the Trooping the Colour parade in London, Queen Elizabeth II was riding her horse Burmese when a 17-year-old named Marcus Sarjeant fired six blank shots at her. Despite the sudden noise and panic, the Queen stayed remarkably calm. Though Burmese was startled, she quickly brought the horse under control—riding sidesaddle the entire time—and continued the procession without interruption. Her composure under pressure became one of the most icon