Forth evolved organically. C was created in a lab.
From Brad Eckert@21:1/5 to All on Fri Oct 21 18:28:30 2022
Just saying.
From Wikipedia:
"Forth evolved from Charles H. Moore's personal programming system, which had been in continuous development since 1968. Forth was first exposed to other programmers in the early 1970s, starting with Elizabeth Rather at the United States National Radio
Astronomy Observatory (NRAO)."
"C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix. It was applied to re-implementing the kernel of the Unix operating system."