Writings in Estonian became significant only in the 19th century with the spread of the ideas of the Age of Enlightenment, during the Estophile Enlightenment Period (1750–1840). Although Baltic Germans at large regarded the future of Estonians as being a fusion with themselves, the Estophile educated class admired the ancient culture of the Estonians and their era of freedom before the conquests by Danes and Germans in the 13th century.

Answer this question, if possible (if impossible, reply "unanswerable"):  What Age's ideas did not allow Estonian writings to gain significance?
unanswerable