| Society of the Cincinnati |
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| Solidarity Day (Organized Labor Event 09/12/1981) |
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| South Africa |
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| South America |
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| South Florida Task Force Working Group |
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| South Korea |
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| South Pacific Nuclear Free Zone (SPNFZ) |
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| Southwest Border |
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| Soviet Union, 1917-1991 - Union of Soviet Socialist Republics (U.S.S.R.) |
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| Space Policy |
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| Space Shuttle |
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| Spain |
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| Special Investigations, Office of (Deprtment of Justice) |
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| Speeches of President Ronald Reagan |
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| Sports |
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| Standby Petroleum Allocation Act (S. 1503) |
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| State Dinners |
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| State of the Union Speeches |
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| Stealth Aircraft and Low Observable Programs |
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| Steel Trade Issues |
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| Straight, Inc. |
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| Strategic Defense Initiative (SDI) |
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| Strategic Defense Initiative (SDI) “Star Wars” Speech, 03/23/1983 |
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| Stratospheric Ozone |
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| Sullivan, Rev. Leon H. |
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