Congress. Synoptical table of terms of office, and length of service, in the Senate, and of the Presidents pro Session. Commencement of Session. Termination Number of days in each Session. Names of Vice Presi dents of the United 4 Mar. 1789 29 Sept. 1789 210 John Adams John Adams 4 Jan. 1790 12 Aug. 1790 221 John Adams 1 |