Daguerreotype, an early photographic process, was announced at the French Academy of Science on this day in 1839.

Did you know that:

• Kirland Warbler discovered Andros Island in the Bahamas on this day in 1879
• Karel Capek, a Czech writer best known for his play “R.U.R.” which introduced the word “robot”, was born on this day in 1890
• Juan de la Cierva made the first autogiro flight in Spain on this day in 1923