[1] In 1908, he traveled to Europe, where he studied at the Ecole des Beaux Arts in Brussels and Paris,[1][2] returning to work in New York City in 1911.

[1] In 1913, he was awarded a three year fellowship to the American Academy in Rome, where he honed his skills and explored classical works, while also teaching, until returning to New York City.

[1] When Cass Gilbert designed the U.S. Chamber of Commerce Building, completed in 1925 in Washington, D.C., he commissioned Friedlander to produce twenty-six relief panels to be included in the project.

[1] In 1930, he received a commission to design models for Sacrifice and Valor, two statues known collectively as The Arts of War, to flank the planned Washington, D.C. Arlington Memorial Bridge.

[1][5] In addition to large public works, Friedlander also created smaller pieces for private sale, such as his 22 in (56 cm) tall Female Warrior, designed c. 1916, while still on his fellowship to the American Academy in Rome.