For everyone wondering, they're referencing an actual thing that happened during the American civil war.
Greenbacks were emergency paper currency issued by the United States during the American Civil War that were printed in green on the back. They were in two forms: Demand Notes, issued in 1861–1862, and United States Notes, issued in 1862–1865. A form of fiat money, the notes were legal tender for most purposes and carried varying promises of eventual payment in coin but were not backed by existing gold or silver reserves.
That's so ridiculous. Another year long break only for what? A story that tbh is going nowhere. The pacing is wack and everything is just so predictable