What does 'c.' in 'c.1800' mean?
The construction with 'of' is comparatively recent (first recorded c.1800) and is probably due to association with none of, some of, little of, much of, etc.

What does 'c.' in 'c.1800' mean? Thank you.

Question

What does 'c.' in  'c.1800' mean?
The construction with 'of' is comparatively recent (first recorded c.1800) and is probably due to association with none of, some of,  little of, much of, etc.

What does 'c.' in  'c.1800' mean? Thank you.

Answer

C-circa
c. 1800 mean means around 1800, but the exact date is not known.