I've never heard of "Black" being a term considered insulting.
I grew up in the late 50s and early 60s. At the time, I was told to use the term Negro or Colored
Calling them black was considered demeaning
My great grandpa always referred to Black people as either Black or colored. I know a lady that was one of the protesters that did the sit ins in the south and she is the same way. Thats odd because I have never heard of it being derogatory.
I'm just going on my memories from 50 years ago
I don't recall ever calling someone black until around 1968
At that time, the Civil Rights act had passed and the black power movement was in full steam. I'm black and I'm proud became the rallying cry. Black was no longer something to be ashamed of
The terms negro and colored seemed to remind people of Jim Crow and fell out of favor. Black became the preferred term
Is it possible that non racist whites thought it (Black) was derogatory? Little tidbit. MLK is the one that started that slogan about being Black and proud.
Rightwinger recalls it exactly the same as I do (we must be around the same age).
The fact that MLK, and James Brown and various other activists of the time saw a need to associate "pride" with the word "black"
demonstrates that before that point that association was not common. What they did in redefining the term was revolutionary. It was specifically designed to
throw off the negative connotations and inspire self-respect.
So again, just another example of how such terms can change in far less time than 163 years.
"Colored" I hadn't thought of but that used to be a neutral term too, now it's extinct. That one always struck me weird -- if those people are "colored", what are the other people? Transparent?