Wisdom tooth extraction may be done by a dentist or an oral surgeon. Some dentists and oral surgeons recommend wisdom tooth extraction even if impacted teeth aren't causing problems, as a preventive measure against potential future problems.
An Ordinance for the Government of the Territory of the United States, North-West of the River Ohio, 1787. New York: s.n., 1787. The Northwest Ordinance, officially titled An Ordinance for the Government of the Territory of the United States North West of the River Ohio, was adopted by the Confederation Congress on July 13, 1787.
The Northwest Ordinance, as it came to be known, clearly indicated the western lands north of the Ohio River, west of the Alleghenies, and east of the Mississippi River would be settled and become states on a par with existing ones.