Tadeusz Sendzimir died
Tadeusz Sendzimir was a Polish engineer and inventor of international renown. He held 120 patents in mining and metallurgy, 73 of which were awarded to him in the United States. Father of revolutionary methods of processing steel and metals used in every industrialized nation of the world. He was awarded many distinctions and honours including the Polish Gold Cross of Merit (1938), the Bessemer Gold Medal (1965) and the Brinell Gold Medal of the Royal Swedish Academy of Sciences in Stockholm (1974).
Richmond-San Rafael Bridge opened
The northernmost of the east-west crossings of the San Francisco Bay in California, USA, the Richmond-San Rafael Bridge opened in 1956, replacing ferry service by the Richmond-San Rafael Ferry Company. With a length (including approaches) of 5.5 miles (8.9 km) the bridge was one of the world's longest bridges at the time it was built.
1923 Great Kanto earthquake
The Great Kanto earthquake struck the Kanto Plain on the main Japanese island of Honshu at 11:58:44 JST (02:58:44 UTC) on Saturday, September 1, 1923. Varied accounts indicate the duration of the earthquake was between four and ten minutes. Extensive firestorms and even a fire whirl added to the death toll. The earthquake had a magnitude of 7.9 on the moment magnitude scale (Mw), with its focus deep beneath Izu Oshima Island in Sagami Bay. The cause was a rupture of part of the convergent boundary where the Philippine Sea Plate is subducting beneath the Okhotsk Plate along the line of the Sagami Trough.
MBTA subway began operation
The Massachusetts Bay Transportation Authority (MBTA) operates rapid transit (heavy rail), light rail, and bus rapid transit services in the Boston metropolitan area, collectively referred to as the rapid transit, subway, or the T system. The four-track-wide segment of the tunnel between Park Street and Boylston stations opened in September 1, 1897. It was the first subway in the United States, and has been designated a National Historic Landmark.
