10 Great Inventors You Never Knew Were Freemasons

The French-born astronomer, scientist, natural philosopher and priest Rev. John Theophilus Desaguliers has been credited with the invention of the planetarium and is also remembered as the man who took steam engine design a step further though the addition of a safety valve.

Influenced by Sir Isaac Newton, whom he was an assistant to, the Oxford-educated Desaguliers chose to settle in England.

Desaguliers was also an extremely prominent Freemason and a major force both in collating the early history of the society and in attracting noblemen to the world’s first known Grand Lodge — the Premier Grand Lodge of England.

Mystery shrouds his connection with Freemasonry up to 1719, but in that year he was elected the third Grand Master, and after serving in this post he subsequently held various prestigious positions within the Fraternity — in his adopted home as well as in Europe.

Desaguliers, who appears to have invested far more time in science and Freemasonry than he did in the Church of England, has been called the “Father of Modern speculative Freemasonry.”