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Florian Cajori was born at Saint Aignan near Thusis in Switzerland February 28, 1859, came to the United States in 1875 and was graduated at the University of Wisconsin in 1883. The year 1884-85 he spent at the Johns Hopkins University and in 1885 was called to Tulane University to teach mathematics. A breakdown in health sent him to Colorado, where he prepared a monograph on the Teaching and History of Mathematics in the United States. This started him in the direction of his life work.
In 1889 he joined the faculty of Colorado College. There he published a history of elementary mathematics in 1896 and a history of physics in 1899. He was then invited to contribute to the fourth volume of Cantor's treatise on the history of mathematics which appeared in 1908. Year by year his scholarship became more and more profound and the number and quality of his contributions to the history of mathematics increased steadily to the time of his death August 15, 1930. He was appointed professor of the history of mathematics in the University of California in 1918, where he came to be recognized as the leading historian of mathematics in this country.
In 1889 he joined the faculty of Colorado College. There he published a history of elementary mathematics in 1896 and a history of physics in 1899. He was then invited to contribute to the fourth volume of Cantor's treatise on the history of mathematics which appeared in 1908. Year by year his scholarship became more and more profound and the number and quality of his contributions to the history of mathematics increased steadily to the time of his death August 15, 1930. He was appointed professor of the history of mathematics in the University of California in 1918, where he came to be recognized as the leading historian of mathematics in this country.
This University of California obituary is available at THIS LINK