Wednesday, October 21, 2020

Hello Girls - WW1


When the first members of the American Expeditionary Force arrived in France in 1917 they found that the telephone lines already in operation were overloaded. To solve the problem, John J Pershing called for experienced, bilingual switchboard operators, which meant women. Hundreds would don the uniform and answer the call as “Hello Girls”, serving in the Signal Corps.

The St. Francis Dam was a curved concrete gravity dam, built to create a large regulating and storage reservoir for the city of Los Angeles, California. The reservoir was an integral part of the city's Los Angeles Aqueduct water supply infrastructure. It was located in San Francisquito Canyon of the Sierra Pelona Mountains, about 40 miles (64 km) northwest of downtown Los Angeles, and approximately 10 miles (16 km) north of the present day city of Santa Clarita.

The dam was designed and built between 1924 and 1926 by the Los Angeles Department of Water and Power, then named the Bureau of Water Works and Supply. The department was under the direction of its general manager and chief engineer, William Mulholland.

At 11:57 p.m. on March 12, 1928, the dam catastrophically failed, and the resulting flood killed at least 431 people. The collapse of the St. Francis Dam is considered to be one of the worst American civil engineering disasters of the 20th century and remains the second-greatest loss of life in California's history, after the 1906 San Francisco earthquake and fire. The disaster marked the end of Mulholland's career.

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sī vīs pācem, parā bellum

igitur quī dēsīderat pācem praeparet bellum    therefore, he who desires peace, let him prepare for war sī vīs pācem, parā bellum if you wan...