In United States history, Gilded Age refers to the period following the Civil War and Reconstruction, running from the late 1860s to 1896.

The term "Gilded Age" was coined by Mark Twain and Charles Dudley Warner in their book The Gilded Age: A Tale of Today (1873). The term refers to the gilding of a cheaper metal with a thin layer of gold, with a hint of the "golden age" of a nation's glory. Many critics at the time complained that the era was marked by ostentatious display, crass manners, political corruption, and shoddy ethics.

Historians point out that it was a time of enormous industrial, urban and agricultural growth, that attracted millions of eager workers from Europe. Railroads were the major industry, but the factory system and mining were important as well, and labor unions began to be important. The growth was interrupted by major nationwide depressions known as the Panic of 1873 and the Panic of 1893. Much of the growth, however, only applied to the former Union states. The former confederacy was still economically devastated from the Civil War and their economy became increasingly tied to cotton and tobacco production. Black Americans in the south experienced the worst setbacks, as they were stripped of political power and voting rights. The political landscape was unique in that despite rampant corruption turnout was high and elections between the evenly matched parties were close. The dominant issues were rights for Black Americans, tariff policy and monetary policy. Reformers worked for civil service reform, prohibition and woman suffrage, while philanthropists built colleges and hospitals, and the many religious denominations exerted a major sway in everyday life.

Henry Clay Frick (December 19, 1849 – December 2, 1919) was an American industrialist, financier, and art patron. He founded the H. C. Frick & Company coke manufacturing company, was chairman of the Carnegie Steel Company, and played a major role in the formation of the giant U.S. Steel steel manufacturing concern. He also financed the construction of the Pennsylvania Railroad and the Reading Company, and owned extensive real estate holdings in Pittsburgh and throughout the state of Pennsylvania. He later built the historic neoclassical Frick Mansion (now a landmark building in Manhattan) and at his death donated his extensive collection of old master paintings and fine furniture to create the celebrated Frick Collection and art museum. Once known by his critics as “the most hated man in America,” — Portfolio.com named Frick one of the "Worst American CEOs of All Time"— he has long been vilified by the public and historians for his ruthlessness and lack of morality in business.

Frick was born in West Overton, Westmoreland County, Pennsylvania, U.S., a grandson of Abraham Overholt, the owner of the prosperous Overholt Whiskey distillery (see Old Overholt). Frick's father, John W. Frick, was unsuccessful in business pursuits. Henry Clay Frick attended Otterbein College for one year, but did not graduate. In 1871, at 21 years old, Frick joined two cousins and a friend in a small partnership, using a beehive oven to turn coal into coke for use in steel manufacturing, and vowed to be a millionaire by the age of thirty. The company was called Frick Coke Company.

Henry Clay, Sr. (April 12, 1777 – June 29, 1852), was a lawyer, politician and skilled orator who represented Kentucky separately in both the Senate and in the House of Representatives. He served three different terms as Speaker of the United States House of Representatives and was also Secretary of State from 1825 to 1829.

Clay was a dominant figure in both the First and Second Party systems. As a leading war hawk, he favored war with Britain and played a significant role in leading the nation to war in 1812. Later he was involved in the "Corrupt Bargain" of 1824, after which he was appointed Secretary of State by newly elected President John Quincy Adams, earning the scorn of Andrew Jackson. He was the foremost proponent of the American System, fighting for an increase in tariffs to foster industry in the United States, the use of federal funding to build and maintain infrastructure, and a strong national bank. He opposed the annexation of Texas, fearing it would inject the slavery issue into politics. Clay also opposed the Mexican-American War and the "Manifest Destiny" policy of Democrats, which cost him votes in the close 1844 election.

Andrew Carnegie ( /kɑrˈneɪɡi/ kar-NAY-gee, but commonly /ˈkɑrnɨɡi/ KAR-nə-gee or /kɑrˈnɛɡi/ kar-NEG-ee) (November 25, 1835 – August 11, 1919) was a Scottish-American industrialist who led the enormous expansion of the American steel industry in the late 19th century. He was also one of the most important philanthropists of his era.

Carnegie was born in Dunfermline, Scotland, and emigrated to the United States with his parents in 1848. His first job in the United States was as a factory worker in a bobbin factory. Later on he became a bill logger for the owner of the company. Soon after he became a messenger boy. Eventually he progressed up the ranks of a telegraph company. He built Pittsburgh's Carnegie Steel Company, which was later merged with Elbert H. Gary's Federal Steel Company and several smaller companies to create U.S. Steel. With the fortune he made from business among others he built Carnegie Hall, later he turned to philanthropy and interests in education, founding the Carnegie Corporation of New York, Carnegie Endowment for International Peace, Carnegie Institution of Washington, Carnegie Mellon University and the Carnegie Museums of Pittsburgh.