I was working on a COBOl program in the late 80's that stored the year as a single digit value. Sounded totally stupid when I was explained the structure. But r

I was working on a COBOl program in the late 80's that stored the year as a single digit value. Sounded totally stupid when I was explained the structure. But records were removed after 4 years automatically, so it wasn't a problem, it was always obvious which year was stored.