Jose Rizal died on December 30 1896
I consider it as knowledge.
It is a fact that you didn't really know what is the correct answer but you wouldn't guess it, if you didn't have an idea about it. Knowledge comes in many forms as long as you have an answer that can be RELATABLE to the topic. If you were to guess something,surely you will have a basis from it like where did you thought of that. Guessing can be a form of Knowledge because it shows possibilities, probabilities, and conclusions. Even Scientists uses guess that is also known as "Hypothesis". Guessing can also imply that at least you know or you learned something which can be included as Knowledge.
Hope this Helps ❤
Jose rizal birth was June 19, 1861