One thing I credit COBOL with is the use of descriptive variable naming. In FORTRAN you see variables named i, j, x etc (just look at Numerical Recipes) but in COBOL you see TOTAL_MONTH_SALES and the like. It is considered good style and “self-documenting” to do that today.
COBOL was intended from the start to be "self-documenting" and English-like with the thinking being that it could be used by 'non-programmers' to create business logic. Not sure that I buy it achieved that goal, but it was the intent.
