I wondered aloud if a relative might have been of the right age to fight in World War One.
I should have tried to do the math in my head first. Gary rolled his eyes and snapped:
"Ellen, don't talk about things when you know nothing. " I braced myself for the mathematical ridicule.
He continued, "The United States didn't fight in World War One."
And he did it with a tone, even.
I laughed heartily and directly in his face. He held fast to his contention that the US didn't fight in World War I. I can tell you after the fact, if you ask Alexa, "Was the United Staes in World War One?" that her first word is Yes.
One hour later Gary finally stopped reading the Wikipedia page List of Wars Involving the United States aloud to me. If I were in his situation, yes, I would go to Wikipedia to educate myself, yet what I would NOT do is educate my spouse for an hour on something she already knows.
And actually, I know he knows. He has to know. He watched 1917 - but then, were there Americans in that movie? All Quiet on the Western Front? Wait, we spent hours in the WWI museum in Kansas City. I know he knows this.
I actually checked to see if "forgetting historical facts you have known for years" is a sign of Alzheimers or dementia. Luckily, I only need to worry if he forgets recently-learned information.