Mars dating codes
It has been used by historians since its introduction in 1583 to convert between different calendars.
Julian day is the continuous count of days since the beginning of the Julian Period and is used primarily by astronomers.
Montana throws more milk down the drain than other states because the sell-by date on the milk is required by state law to be just 12 days after pasteurization (the industry standard is 21 days).
After these 12 days, Montana law requires that the milk be thrown away. Thousands of gallons of milk are thrown away each week that many believe is perfectly fine to drink.
At the time, most manufacturers already put encrypted dates on their products to help retailers rotate stock and consumers craved access to this information.
In 1977, the New York State Consumer Protection Board published a booklet called Blind Dates: How to Break the Codes on the Foods You Buy.