Bills are routinely chopped up and replaced to get worn ones out of circulation. Naturally as time passes there will be later dates. Possibly all the illegals who deal in cash are accelerating the process.
https://wonderopolis.org/wonder/where-does-old-money-go
Bills are routinely chopped up and replaced to get worn ones out of circulation. Naturally as time passes there will be later dates. Possibly all the illegals who deal in cash are accelerating the process. https://wonderopolis.org/wonder/where-does-old-money-go