Some things seem so simple when you know them but you can't figure out why you didn't understand them sooner. \
For instance:
One of my favorite movies is Casablanca.
One of the most common words in French, Spanish and Portuguese is "casa" which means "house".
I live on a street named "LeBlanc" which I came to know years ago was taken from the French, Spanish or Portuguese meaning "white".
Casablanca, the movie and largest city in Morocco, is named "white house".
Why didn't I pick up on this a long time ago?