empiricalzeal.com

1axbO TIL that in Japanese, 緑 (green) was taught to be a shade of 青 (blue) until the occupation of Japan in WW2. Japanese people still regularly use 青 to describe traffic lights and unripe fruit
XArj TIL most world languages don’t distinguish between blue and green
gaL8 TIL that our ability to comprehend certain colors depends on if our language has a word for that color, and some cultures do not distinguish between blue and green.