https://en.wikipedia.org/wiki/List_of_national_emergencies_i...

...in the US, there are ~40 (after counting the green squares twice it seems there are now 41) ongoing "national emergencies" declared since the passage of the "National Emergencies Act" in 1976.

The oldest one seems to be from 1979 and involve sanctions on Iran from the hostage crisis.

Biden has declared five emergencies; Trump declared nine (that haven't ended), Obama also declared nine (again ignoring ones that ended), GWB declared eleven, net, Clinton declared six, net, and surprisingly all emergencies between 1979 and 1994, roughly did come to an end.

Regardless of what one thinks of it, it's curious that for a couple of decades, the norm was for emergencies in the US to end and now it's not.