Almaty Metro opened
Almaty Metro is a rapid transit/metro system in Almaty, Kazakhstan. The first line of the system was opened on 1 December 2011, after more than 23 years of construction. A 2.9-kilometre (1.8 mi), two-station extension of the Metro to Moskva station opened on 18 April 2015, followed by a 3.1 kilometres (1.9 mi), two-station extension to Bauyrzhan Momyshuly on 30 May 2022.
Manila Light Rail Transit System opened
The Manila Light Rail Transit System, commonly known as the LRT, is an urban rail transit system that primarily serves Metro Manila, Philippines. Although categorized as a light rail system because it originally used light rail vehicles, it presently has characteristics of a rapid transit system, such as high passenger throughput, exclusive right-of-way, and later use of full metro rolling stock. The LRT's 37.24-kilometer-route (23.14 mi) is mostly elevated and consists of two lines and 33 stations.
Gleno Dam
The Gleno Dam was a multiple arch buttress dam on the Gleno Creek in the Valle di Scalve, northern Province of Bergamo, Italy. The dam was built between 1916 and 1923 with the purpose of producing hydroelectric power. The middle section of the dam collapsed on 1 December 1923, forty days after the reservoir was filled, causing widespread flooding that killed at least 356 people. At 6:30am on December 1, 1923, a buttress on the dam cracked and subsequently failed. Within minutes, an estimated 4,500,000 m3 (3,648 acre-ft) of water gushed from the reservoir at an elevation of 1,535 m (5,036 ft) to the valley below.
Buenos Aires Underground opened
The Buenos Aires Underground, locally known as Subte, is a rapid transit system that serves the area of the city of Buenos Aires, Argentina. The first section of this network (Plaza de Mayo-Plaza Miserere) opened in 1913, making it the 13th subway in the world and the first underground railway in Latin America, the Southern Hemisphere, and the Spanish-speaking world, with the Madrid Metro opening five years later, in 1919. Currently, the underground network's six lines-A, B, C, D, E, and H-comprise 56.7 kilometers (35.2 mi) of routes that serve 90 stations. The network is complemented by the 7.4-kilometre-long (4.6 mi) Premetro line, and the 26-kilometre-long (16 mi) Urquiza suburban line, with 17 more stations in total.
