Almost 40 percent of all federal criminal statutes passed after the civil war were enacted between

The correct answer is 1970-1998. That is because following the civil war there were not that many laws in the criminal statute added since everyone focused on the reconstruction, and later things like trust busting. Only after the tumultuous times ended, sometime after Vietnam, could they focus on updating the criminal statutes.

He sailed off course on his way back to greenland and ended up in north america