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  2. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    History of PDF. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...

  3. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.

  4. Presidential Records Act - Wikipedia

    en.wikipedia.org/wiki/Presidential_Records_Act

    The Presidential Records Act (PRA) of 1978, 44 U.S.C. §§ 2201 – 2209, [3] is an Act of the United States Congress governing the official records of Presidents and Vice Presidents created or received after January 20, 1981, and mandating the preservation of all presidential records. Enacted November 4, 1978, [4] the PRA changed the legal ...

  5. List of presidents of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_Presidents_of_the...

    The White House, official residence of the president of the United States, in July 2008. The president of the United States is the head of state and head of government of the United States, [1] indirectly elected to a four-year term via the Electoral College. [2]

  6. Constitution of the United States - Wikipedia

    en.wikipedia.org/wiki/Constitution_of_the_United...

    The Constitution of the United States is the supreme law of the United States. [ 3 ] It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally including seven articles, the Constitution delineates the frame of the federal government.

  7. Franklin D. Roosevelt - Wikipedia

    en.wikipedia.org/wiki/Franklin_D._Roosevelt

    Recorded December 8, 1941. Franklin Delano Roosevelt[a] (January 30, 1882 – April 12, 1945), commonly known by his initials FDR, was an American politician who served as the 32nd president of the United States from 1933 until his death in 1945. The longest serving U.S. president, he is the only president to have served more than two terms.

  8. President of the United States - Wikipedia

    en.wikipedia.org/wiki/President_of_the_United_States

    e. The president of the United States (POTUS) [B] is the head of state and head of government of the United States of America. The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces. The power of the presidency has grown substantially [12] since the first president ...

  9. Presidential library system - Wikipedia

    en.wikipedia.org/wiki/Presidential_library_system

    The presidential library system is made up of thirteen presidential libraries operated fully, or partially, by NARA. [n 1] [4] Libraries and museums have been established for earlier presidents, but they are not part of the NARA presidential library system, and are operated by private foundations, historical societies, or state governments, including the James K. Polk, William McKinley ...