Prague Metro Line B opened
Chronologically the third to open, it was first opened in 1985 and continued to expand in the 1990s. Currently it is the longest line in the network with 24 stations and 25.6 kilometres (15.9 mi) of track.
UK M1 motorway First Section opened
The M1 motorway connects London to Leeds, where it joins the A1(M) near Aberford, to connect to Newcastle. It was the first inter-urban motorway to be completed in the UK; the first motorway in the country was the Preston Bypass, which later became part of the M6. The motorway is 193 miles (311 km) long and was constructed in four phases. Most of the motorway was opened between 1959 and 1968. The southern end was extended in 1977 and the northern end was extended in 1999. The first section of the motorway is located between junction 5 (Watford) and junction 18 (Crick/Rugby)
Llyn Eigiau dam and Coedty reservoir failure
Coedty Reservoir is a reservoir in Snowdonia, North Wales. It is fed by the waters of Afon Porth-llwyd which flows from Llyn Eigiau. The reservoir lies at a height of 900 feet (274 m), and measures some 12 acres (49,000 m2) in size. It contains brown trout. The original dam was built in 1924 to provide hydro-electric power to the aluminium smelting works in Dolgarrog. In 1925, the Eigiau dam broke, and the flood of water from that also burst Coedty dam. The resultant flood caused the loss of 16 lives in Dolgarrog. The dam was rebuilt in 1926, and altered again in 1956.
Theodore Judah died
Theodore Dehone Judah was an American civil engineer who was a central figure in the original promotion, establishment, and design of the First transcontinental railroad. He found investors for what became the Central Pacific Railroad (CPRR). As chief engineer, he performed much of the route survey work to determine the best alignment for the railroad over the Sierra Nevada, which was completed six years after his death.
