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| ![](images/g_link.gif) | Landon, Alfred | 1887 - 1987 | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | Landon, Alfred | 1887 - 1987 | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln, Abraham, Reads the Emancipation Proclamation to His Cabinet | 1862 | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | La Follette, Robert M., Sr.: Presidential Candidate | 1855 - 1925 | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | La Follette, Robert M. | 1855 - 1925 | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln, Mary Todd | 1818 - 1882 | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | Lincoln, Mary Todd | 1818 - 1882 | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln, Abraham: Presidency | 1809 - 1865 | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | Lincoln, Abraham | 1809 - 1865 | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Louisiana Purchase | 1803 | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Lyndon Johnson's Polling Numbers on Display | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lyndon Johnson with Troops in Vietnam, 1966 | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lyndon Johnson Signs the Twenty-Fifth Amendment | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lyndon Johnson Meets with Senate Leaders | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lyndon Johnson Being Sworn In on Air Force One | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lyndon Johnson and Truman at Medicare Signing | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Louisiana Purchase Map | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Louisiana Purchase | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Loss and Gain of Seats in Congress by President's Party in Midterm Elections | | ![Tables, graphs, and other statistical information.](/xsite/images/icon_facts.gif) | Facts & Figures |
| ![](images/g_link.gif) | Los Alamos National Laboratory | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Longest and Shortest Inaugural Addresses | | ![Tables, graphs, and other statistical information.](/xsite/images/icon_facts.gif) | Facts & Figures |
| ![](images/g_link.gif) | Line-Item Veto | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Line-Item Veto | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Lincoln, Mary Todd | | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | Lincoln, Mary Todd | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln, Abraham, Meets with Gen. George B. McClellan | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln, Abraham | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln, Abraham | | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | Lincoln Reads Emancipation Proclamation to His Cabinet | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln Assassination Poster | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lincoln and Gen. McClellan at Antietam, 1862 | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lieberman, Joseph I. | | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | Libraries | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Libraries | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Legislative Veto | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Legislative Veto | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Law for Counting Electoral Votes in Congress | | ![Tables, graphs, and other statistical information.](/xsite/images/icon_facts.gif) | Facts & Figures |
| ![](images/g_link.gif) | Law Enforcement Powers | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Law Enforcement Powers | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Landon, Alfred | | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |
| ![](images/g_link.gif) | Landon, Alfred | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | Lame Duck: Presidential | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Lame Duck | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Labor Department | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | Labor Department | | ![General summary of issues, concepts, processes, events, and historical figures.](/xsite/images/icon_encyc.gif) | Encyclopedia Entry |
| ![](images/g_link.gif) | La Follette, Robert M. | | ![Photograph of an individual or event.](/xsite/images/icon_image.gif) | Image |
| ![](images/g_link.gif) | La Follette, Robert M. | | ![Biographical information on significant figures.](/xsite/images/icon_bio.gif) | Biography |