C++ was invented in 1979.
In 1989 the most popular programming languages, in order of popularity, were:
1. C
2. Ada
3. Pascal
4. Lisp
5. Fortran
6. C++
7. Assembly
8. COBOL
9. BASIC
10. APL
Source - https://youtu.be/Og847HVwRSI?t=120
In 1989 the most popular programming languages, in order of popularity, were:
1. C
2. Ada
3. Pascal
4. Lisp
5. Fortran
6. C++
7. Assembly
8. COBOL
9. BASIC
10. APL
Source - https://youtu.be/Og847HVwRSI?t=120
As far as Go's popularity, see e.g. https://fossbytes.com/most-popular-programming-languages/.