What things you discovered on your own, that is actually already known and named for a long time? For example, you observe a phenomenon, you write it down, but didn’t look it up further for lack of words. Years later, you chance upon the exact same thing on Wikipedia.
My parents and relatives are living month after month, year after year, remarking how the prayer times had come sooner/later, never realizing what caused it, and how it’s the exact same pattern every Gregorian year i.e. Muslim prayer times ironically correlates to Gregorian dates.