On this day in 1436, the Grand Council of the Republic of Dubrovnik made a decision to build the Dubrovnik waterworks.
Masters from Italy, Onofrio de la Cava and Andreucius de Tramonete de Bulbito were hired for the construction, which then brought water to Dubrovnik from the Sumet spring, along a route of 11,700 meters.
Located at 109 meters above sea level, the spring gave 70 liters of water per second, and the water from it led to the lower slopes of Srd by a gravitational drop with a slope of 0.6 percent to today's historic core of Dubrovnik.