Foucault wrote his article 200 years after Kant wrote his article for the Berlinischen Monatsschrift the 30th of September 1784. Twenty years later, it seems a good time to have a look at them again. I find Kant funnier.
Kant: Was ist Aufklärung? (in english)
Foucault: Qu'est-ce que les Lumières ? (in english)