 Experts say they were fired at British soldiers in 1775 during the event known as the Shot Heard Round the World. They'll now be on display at a local museum. Michelle Franz in ABC News. Feeling congested? At Navage, we know life is better when you can breathe freely. Congestion shouldn't ruin your summer. That's why people just like you turn to Navage, a revolutionary and easy way to help clear nasal passages. Using gentle suction, Navage removes allergens, dust, and mucus in just 30 seconds. It's fast, gentle, and incredibly effective.