Currency bill tracking

Originally beginning in the United States in the mid-1990s[citation needed], the phenomenon or hobby of currency tracking quickly spread first to Canada and then beyond.

Especially with the Euro bill tracking, trackers have taken on a much more competitive nature and have formed communities within their respective sites.

In the Eurozone because multiple countries having adopted the Euro, this easily leads to competition between trackers in different countries; in the United States competition plays out at the state or county level; and in Canada, at the provincial level.

Marking bills in Canada with ink or rubber stamp is not illegal.

The European Central Bank considers the marking of bills (as well as the destruction of them) to be legal and not exclusive to governments.