1964 The previous season's top 5 Minor Counties teams added to those taking part. The competition was called The Gillette Cup from this year, all matches were reduced to 60 overs a side

1980 Ireland added to those who take part in the competition. Last year the competition was sponsored by Gillette.

1981 National Westminster Bank became the sponsors of the competition.

1983 Scotland added to those who take part in the competition. The number of Minor Counties taking part increased from 5 to 13.

1992 Durham, on achieving first-class status added to those taking part in the competition, and the number of Minor Counties reduced to 12.

1995 Holland added to those taking part in the competition (but barred from home fixtures because of lack of turf pitches), and the number of Minor Counties reduced to 11.

2001 Cheltenham & Gloucester PLC become new sponsors.