Jean-Baptiste Soleil Jean-Baptiste Soleil </div>Jean-Baptiste François Soleil (1798–1878) was a French optician and engineer. In 1819, Soleil founded an eponymous company at 23 Passage Vivienne in Paris, specialised in making optics instruments for such notable researchers as Fresnel, Arago, Foucault and Babinet. In 1825 he moved business to 21, rue de l'Odéon . In 1843, he made a heliostat for Jean Thiébault Silbermann. In 1849, the business was split between to divisions under his son Henri Soleil, and his son-in-law Jules Duboscq. The Soleil division went on under Laurent Soleil, and has now been renamed to Jobin Yvon. The Duboscq division was
Sun Language Theory Language Theory was adopted by Atatürk in order to legitimize the Arabic and Persian words which the Turkish language authorities did not manage to uproot. This move compensated for the failure to provide a neologism for every foreignism/loanword." Sun Language Theory The Sun Language Theory () was a Turkish nationalist pseudoscientific linguistic hypothesis developed in Turkey in the 1930s that proposed that all human languages are descendants of one proto-Turkic primal language. The theory proposed that because this primal language had close phonemic resemblances to Turkish, all other languages can essentially be traced back to Turkic roots. According to the