When did Ophiuchus become the official constellation?

Ophiuchus, as an official constellation, has a history of more than 2000 years. It was officially recognized long before astrology appeared. Just for astrologers, there are 13 constellations on the ecliptic, which is very difficult to do, so in an era when people's education level is generally not high. They say there are 12 constellations on the ecliptic, and people can't tell which one is which anyway. Then now people gradually understand that the ecliptic is actually 13 constellation, and then they have to supplement it.

1922, the General Assembly of the International Astronomical Union decided to divide the sky into 88 constellations, and their names basically followed the historical names. This is the beginning of modern constellation standardization.

What is really not recognized is to tell fortune with constellations.