Translation - Portaingéilis (na Brasaíle)-English - Talvez você me considere burra por não saber a...

Perhaps you think I'm stupid for not knowing the exact date of the French Revolution, but ignorance is not stupidity or offense, it's a condition. For example, I think you must be ignorant about nuclear motion of accelerated particles, but not knowing something so specific does not make someone "stupid".

I did not remember the date, but that would have little importance if I did not know what the French Revolution meant, and if I knew, that would have little importance if I didn't know how to use it on effectively questionable things, therefore, the date is left behind in importance.