World’s first internal pacemaker implanted. A 43-year-old man called Arne Larsson was the recipient of the pacemaker which worked only for a few hours. However, Larsson lived long after the pacemaker stopped working. He died in 2001 at the age of 86.
World’s first transcontinental air race. 63 airplanes – 15 from San Francisco and 48 from New York – took part in this 5400-mile round-trip race. The winner, Lieutenant Belvin Maynard, took 3 days and 21 hours to return to New York.
First Balkan war begins. Montenegro started the conflict by declaring war on the Ottoman Empire. A few days later Greece, Bulgaria, and Serbia joined the war and created the Balkan League. The 7-month long war ended with a decisive Balkan League victory. Dissatisfaction over the spoils of the war led to the Second Balkan War a year later.