Every entry in the journal tagged personality tests.
In 1964 Hans Eysenck published a diagram with two axes and the four classical temperament names printed around the rim. It is the honest starting point for what survived the twentieth century and what did not.
The humors are an old descriptive lens; MBTI, the Big Five, the Enneagram, and DISC are measured tools. Here is where they honestly overlap, and where they do not.
In 1798 Kant kept the four temperaments and threw out the fluids underneath them. Wundt and then Eysenck turned what he left behind into two crossed axes, which is how Galen's four names ended up on a modern personality diagram.