Recent content by martinlucas

In 1820, twenty-four-year-old Thomas de Colmar, a French-born mathematician, invented the world’s first commercial calculating machine called the "Comptometer", which was much faster than other mechanical calculators in use at that time. The comptometer was a large machine with a complex system...

Rachel Box (Cook) was the granddaughter of Thomas Box and Rachel Lea. She was born in 1858 in San Francisco, California. She married Henry Cook in 1883 at Mariposa, California. She died in 1938 in Citrus Heights, California. Rachel was my great-great-grandmother.

I'm a private citizen who witnessed the Metro's success over the past decade. I want to share that great story with the world, one of the best ways to do that is through a series of short videos. I would like to interview an expert in the field of urban planning and transportation, similar to...