Landmark Laws That Changed America

Civil Rights Act of 1964

Born from the moral urgency of the March on Washington and passed after the longest filibuster in Senate history, this law outlawed segregation in public places and discrimination in employment. Lyndon Johnson turned Kennedy's stalled bill into the legal end of Jim Crow within a

Year Enacted: 1964Historical Impact (0-10, higher=greater): 10/10People Affected, higher=broader reach: 200 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 3Signing President: Lyndon B. Johnson

added by IJRin 3 rankingsCivil Rights Act of 1964

Social Security Act of 1935

Signed at the depths of the Great Depression, this law created the first national safety net, guaranteeing monthly checks to retirees and the unemployed. FDR called it 'a cornerstone in a structure which is being built but is by no means complete,' and nine decades later it still

Year Enacted: 1935Historical Impact (0-10, higher=greater): 10/10People Affected, higher=broader reach: 65 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 2Signing President: Franklin D. Roosevelt

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Voting Rights Act of 1965

Passed days after the violence of Bloody Sunday in Selma, this law dismantled the literacy tests and poll taxes that had blocked Black voters across the South for a century. Federal examiners fanned out to register voters directly, and turnout in states like Mississippi surged al

Year Enacted: 1965Historical Impact (0-10, higher=greater): 9.5/10People Affected, higher=broader reach: 30 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 4Signing President: Lyndon B. Johnson

added by IJRin 3 rankingsVoting Rights Act of 1965

Homestead Act of 1862

Signed by Lincoln during the Civil War, this law offered 160 free acres to anyone willing to farm the land for five years, reshaping the map of the American West. It drew waves of settlers, immigrants, and freed families onto the Great Plains, while accelerating the displacement

Year Enacted: 1862Historical Impact (0-10, higher=greater): 8.5/10People Affected, higher=broader reach: 10 millionStill Law Today: —Major SCOTUS Challenges, lower=more sett: 1Signing President: Abraham Lincoln

added by IJRHomestead Act of 1862

GI Bill of 1944

Drafted to avoid a repeat of the Bonus Army crisis after WWI, this law sent millions of returning WWII veterans to college and into new homes with government-backed mortgages. It built the modern American middle class and suburbia almost overnight, though its benefits were uneven

Year Enacted: 1944Historical Impact (0-10, higher=greater): 9/10People Affected, higher=broader reach: 16 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 0Signing President: Franklin D. Roosevelt

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Sherman Antitrust Act of 1890

Written to break the grip of Gilded Age monopolies like Standard Oil, this law gave the federal government its first real weapon against corporate trusts. It sat mostly dormant until Theodore Roosevelt's 'trust-busting' era turned it into a household name, and it later broke up A

Year Enacted: 1890Historical Impact (0-10, higher=greater): 8.5/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 5Signing President: Benjamin Harrison

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Americans with Disabilities Act of 1990

After decades of disability activists organizing, including the 1990 'Capitol Crawl' up the steps of Congress, this law banned disability discrimination in employment, transit, and public buildings. Curb cuts, ramps, and accessible signage across the country exist because of it.

Year Enacted: 1990Historical Impact (0-10, higher=greater): 9/10People Affected, higher=broader reach: 61 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 3Signing President: George H. W. Bush

added by IJRAmericans with Disabilities Act of 1990

Fair Labor Standards Act of 1938

This New Deal law created the federal minimum wage, the 40-hour workweek, and overtime pay, ending an era of unregulated sweatshop hours. It also banned most child labor in manufacturing, a practice that had been common in American factories for decades. The minimum wage it intro

Year Enacted: 1938Historical Impact (0-10, higher=greater): 8.5/10People Affected, higher=broader reach: 143 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 2Signing President: Franklin D. Roosevelt

added by IJRFair Labor Standards Act of 1938

National Labor Relations Act of 1935

Known as the Wagner Act, this law legalized collective bargaining and created the National Labor Relations Board to police unfair labor practices. It triggered a massive wave of unionization in the late 1930s and 40s that helped build the American industrial middle class. Union m

Year Enacted: 1935Historical Impact (0-10, higher=greater): 8/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 3Signing President: Franklin D. Roosevelt

added by IJRNational Labor Relations Act of 1935

Affordable Care Act of 2010

Passed after a year of brutal town-hall fights and razor-thin votes, 'Obamacare' banned insurers from denying coverage for pre-existing conditions and created marketplace subsidies. It survived three separate Supreme Court challenges to its constitutionality, most notably NFIB v.

Year Enacted: 2010Historical Impact (0-10, higher=greater): 8.5/10People Affected, higher=broader reach: 20 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 3Signing President: Barack Obama

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Immigration and Nationality Act of 1965

Signed at the foot of the Statue of Liberty, this law abolished the racist national-origins quota system that had favored Northern Europeans since the 1920s. It opened the door to large-scale immigration from Asia, Africa, and Latin America, reshaping the demographic makeup of th

Year Enacted: 1965Historical Impact (0-10, higher=greater): 8.5/10People Affected, higher=broader reach: 59 millionStill Law Today: ✓Major SCOTUS Challenges, lower=more sett: 1Signing President: Lyndon B. Johnson

added by IJRImmigration and Nationality Act of 1965

Clean Air Act of 1970

Passed with near-unanimous bipartisan support amid visibly smoggy cities, this law gave the newly created EPA power to set national air-quality standards. It is credited with cutting major pollutants by over 70% even as the economy kept growing, one of the EPA's signature success

Year Enacted: 1970Historical Impact (0-10, higher=greater): 8/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 4Signing President: Richard Nixon

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Fair Housing Act of 1968

Passed just days after the assassination of Martin Luther King Jr., this law banned discrimination in the sale, rental, and financing of housing. It targeted the redlining and blockbusting practices that had segregated American neighborhoods for decades. Enforcement was famously

Year Enacted: 1968Historical Impact (0-10, higher=greater): 8/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 2Signing President: Lyndon B. Johnson

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Title IX of 1972

A 37-word sentence banning sex discrimination in any federally funded education program, this law is best known for transforming girls' and women's school sports from an afterthought into a national phenomenon. Female college athletic participation exploded more than tenfold in t

Year Enacted: 1972Historical Impact (0-10, higher=greater): 8/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 3Signing President: Richard Nixon

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Clean Water Act of 1972

Passed the year after the Cuyahoga River famously caught fire, this law set the goal of making American waterways fishable and swimmable again. It required permits for industrial discharge and funded municipal sewage treatment on a massive scale. Rivers and lakes once considered

Year Enacted: 1972Historical Impact (0-10, higher=greater): 7.5/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 3Signing President: Richard Nixon

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Pure Food and Drug Act of 1906

Upton Sinclair's novel 'The Jungle' exposed horrifying conditions in Chicago meatpacking plants, and public outrage pushed this law through Congress within months. It created the first federal ban on mislabeled and adulterated food and medicine, laying the groundwork for the mode

Year Enacted: 1906Historical Impact (0-10, higher=greater): 7.5/10People Affected, higher=broader reach: —Still Law Today: —Major SCOTUS Challenges, lower=more sett: 1Signing President: Theodore Roosevelt

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Federal-Aid Highway Act of 1956

Inspired by the German autobahns Eisenhower saw during WWII, this law funded the 41,000-mile Interstate Highway System, the largest public works project in American history at the time. It transformed commuting, shipping, and suburban growth, but also displaced urban neighborhood

Year Enacted: 1956Historical Impact (0-10, higher=greater): 8/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 0Signing President: Dwight D. Eisenhower

added by IJRFederal-Aid Highway Act of 1956

USA PATRIOT Act of 2001

Passed just 45 days after the September 11 attacks with almost no debate, this law dramatically expanded government surveillance and law-enforcement powers in the name of counterterrorism. It authorized warrantless data collection later exposed by Edward Snowden, sparking a lasti

Year Enacted: 2001Historical Impact (0-10, higher=greater): 6.5/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 5Signing President: George W. Bush

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Endangered Species Act of 1973

Passed with near-unanimous votes after the near-extinction of the bald eagle from DDT, this law gave the federal government sweeping power to protect threatened species and their habitats. It is credited with helping save the bald eagle, gray wolf, and American alligator from ext

Year Enacted: 1973Historical Impact (0-10, higher=greater): 7/10People Affected, higher=broader reach: —Still Law Today: ✓Major SCOTUS Challenges, lower=more sett: 3Signing President: Richard Nixon

added by IJREndangered Species Act of 1973