The motto of American International College is 'Post Tenebras Lux'.

The motto of The Geneva School is 'Post Tenebras Lux, After Darkness Light'.

The coin is likely from Switzerland, as "Post Tenebras Lux" is the motto of the city of Geneva, and "Liberte Independence Egalite" is associated with the French Revolution. The date is more likely to be 1794, as this aligns with the timeframe of the French Revolution and the spread of its ideals.

Universidad Externado de Colombia's motto is 'Post tenebras spero lucem'.

In tenebras.