Labor relations have been transformed, income security has become a standardized feature of political platforms, and all the many facets of the American version of the welfare state have become part of the conventional wisdom.

The issue was sufficiently potent in 1935 to spark secession from the American Federation of Labor of its industrial union members.

That breach was healed 20 years later by merger of the American Federation of Labor and the Congress of Industrial Organizations.

* 1936 – The United Auto Workers ( UAW ) gains autonomy from the American Federation of Labor.

During the Labor Day weekend in 1952, The Saddlemen were renamed Bill Haley with Haley's Comets ( inspired by a popular mispronunciation of Halley's Comet ), and in 1953, Haley's recording of " Crazy Man, Crazy " ( co-written by Haley and his bass player, Marshall Lytle although Lytle would not receive credit until 2001 ) became the first rock and roll song to hit the American charts, peaking at no. 15 on Billboard and no. 11 on Cash Box.

William Green, head of the American Federation of Labor, was taken to the first camp to demonstrate that there would be no job training involved beyond simple manual labor.

* 1955 – The American Federation of Labor and the Congress of Industrial Organizations merge and form the AFL-CIO.

Cabinet members of American presidents include Attorney General Amos T. Akerman, Secretary of Defense James V. Forrestal, Secretary of Labor Robert Reich, former Secretary of the Treasury Henry Paulson, and the current Secretary of the Treasury Timothy Geithner.

He also ran as the nominee of the American Labor Party, a union-dominated anti-Tammany left-wing group that supported Franklin D. Roosevelt for president beginning in 1936.

The CTH received support from foreign labor organizations, including ORIT, the American Institute for Free Labor Development ( AIFLD ), and Germany's Friedrich Ebert Foundation and was an affiliate of the International Confederation of Free Trade Unions ( ICFTU ).

He developed a " mutualist " theory of unions and as such was active within the Knights of Labor and later promoted anti-political strategies in the American Federation of Labor.

And in December 1918, the American Federation of Labor ( AFL ) issued its own distinctively apolitical report, which called for the achievement of numerous incremental improvements via the collective bargaining process.

* 1946 – The United Mine Workers rejoins the American Federation of Labor.

* 1947 – Alexis Herman, American politician, 23rd United States Secretary of Labor

The Knights of Labor ( K of L ) ( officially " Noble and Holy Order of the Knights of Labor ") was the largest and one of the most important American labor organizations of the 1880s.

They lost many craft unionists that year to the rival Railroad brotherhoods and the new American Federation of Labor, which had more conservative reputations.

" Formal Organization and the Fate of Social Movements: Craft Association and Class Alliance in the Knights of Labor ," American Sociological Review Vol.

" The New Labor History and the Powers of Historical Pessimism: Consensus, Hegemony, and the Case of the Knights of Labor ," Journal of American History Vol.

* Fink, Leon / Workingmen's Democracy: The Knights of Labor and American Politics.

" Labor's True Woman: Domesticity and Equal Rights in the Knights of Labor ," Journal of American History Vol.

The Making of American Exceptionalism: The Knights of Labor and Class Formation in the Nineteenth Century.

* Rufus Hatch, " The Labor Crisis ," North American Review, vol.

Boas used his positions at Columbia University and the American Museum of Natural History to train and develop multiple generations of students.

The two most common systems are the classification adopted by the website AmphibiaWeb, University of California ( Berkeley ) and the classification by herpetologist Darrel Frost and the American Museum of Natural History, available as the online reference database Amphibian Species of the World.

* American Museum of Natural History, Division of Paleontology.

Research conducted by the National Museum of American History notes that the story of Betsy Ross making the first American flag for General George Washington entered into American consciousness about the time of the 1876 centennial celebrations.

Because of its pioneering efforts, Acadia is a laureate of Washington ’ s Smithsonian Institution and a part of the permanent research collection of the National Museum of American History.

Conservation staff for both the Smithsonian American Art Museum and the National Portrait Gallery ( United States ) | National Portrait Gallery are visible to the public through floor-to-ceiling glass walls that allow visitors to see firsthand all the techniques that Conservator ( museum ) | Conservators use to examine, treat and preserve artworks within a functioning conservation Laboratory.

About the time he was six or seven, he and a close friend took trips to the American Museum of Natural History in New York City.

* Cecilia Beaux from Smithsonian American Art Museum

* Portrait of Mrs. John Wheeler Leavitt, 1885, grandmother of Cecilia Beaux, Westmoreland Museum of American Art, Greensburg, Pa., ExplorePAHistory. com

Other museums and galleries in Chicago include the Chicago History Museum, the DuSable Museum of African American History, the Museum of Contemporary Art, the Peggy Notebaert Nature Museum, the Polish Museum of America, the Museum of Broadcast Communications and the Museum of Science and Industry.

He created murals for the Harlem Hospital, Golden State Mutual, American Museum of Natural History, Public School 154, the Bronx Family and Criminal Court and the Abraham Lincoln High School in Brooklyn, New York.

The sketches for Magic in Medicine and Modern Medicine were exhibited in the Museum of Modern Art's " New Horizons in American Art ".

Due to economic downturn Golden State was forced to sell their entire art collection to ward off its mounting debts and as of spring 2011 the National Museum of African American History and Culture had offered $ 750, 000 to purchase the artworks which led to a controversy regarding the importance of the artworks which have been estimated to be worth at least $ 5 million.

* National Museum of African American History and Culture

* Whitney Museum of American Art

* Creation Museum, an American creation museum

The History of Cash Registers ", Museum of American Heritage, Palo Alto, California, March 29 to July 7, 1996, Exhibit Companion

The Botto House is now a National Historic Landmark and the home of the American Labor Museum.

* American Labor Museum, Botto House