Wikipedia:WikiProject Numismatics/newsletter/This month in numismatics/January

1

 * 1922, the Soviet ruble was redenominated for the first time at a rate of 10,000 to 1.
 * 1923, the Soviet ruble was redenominated for a second time at a rate of 100 to 1.
 * 1999, the first of the 50 State Quarters is released, commemorating Delaware.

2

 * 1959, production of the Lincoln Memorial cent began.

26

 * 2009, the first of the District of Columbia and United States Territories Quarters is released, commemorating Washington, D.C.