Photography was given freely to the world except who ?

Explanation:

Daguerre was an physicist, artist and business partnere of inventor Joseph Nicephore Niepce. Niepce developed heliography method, it was the precursor of the photographic process. After Niepce died, Daguerre developed a new process in 1833, and invented Dagurreotype in 1837.  

The images produced by Dagurreotype were positive images that were recorded on copper plates coated with silver iodide.

The images produced in camera were developed by exposing them to mercury vapor and then fixing it by strong salt solution.

Daguerre sold his process to the French Academy of Sciences for an annual pension.The process was announced on 7th January 1839 and  on 19th August all the information about the process was shared with the world for free but not to Great Britain. In Great Britain Daguerre's agent filed a patent.

cuban communists pressured the soviet union to place missiles in cuba.

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.