SETI: The Pierre Guzman prize (commonly referred to as “the Guzman Prize”) of one hundred thousand francs is announced in Paris by Clara Gouguet in memory of her son by a former marriage. The prize was to be awarded “a celui qui aura trouve le moyen de communiquer avec an astre autre que la planet Mars (“to him who has found the means of communicating with a star other than Mars”).
The prize was administered by the French Academy of Sciences.
(The date of the announcement of the prize various from source to source, e.g. Moore says 1900.1217 whereas Crowe says 1891).