Sources

Every Number
Has a Source

USA CENTURY is a tribute, and its facts have to hold up. These are the sources behind the figures on this site. If you spot an error, the figure will be corrected.

Economy & Scale

  1. U.S. GDP 2024 ($29.2 trillion): U.S. Bureau of Economic Analysis, bea.gov
  2. Share of world GDP: IMF World Economic Outlook, imf.org
  3. Manufacturing construction spending: U.S. Census Bureau, Construction Spending, census.gov

Artificial Intelligence

  1. Private AI investment and notable AI models by country, 2024: Stanford HAI, AI Index Report 2025, hai.stanford.edu
  2. Stargate project (up to $500 billion, January 21, 2025): openai.com
  3. NVIDIA reaches $4 trillion market value: Reuters, July 2025

Semiconductors

  1. CHIPS and Science Act ($52.7 billion): U.S. Department of Commerce / NIST, nist.gov/chips
  2. TSMC Arizona production and $165 billion investment plan: TSMC newsroom, pr.tsmc.com
  3. U.S. fab capacity projection 2022–2032: Semiconductor Industry Association and BCG, "Emerging Resilience in the Semiconductor Supply Chain," May 2024, semiconductors.org

Space

  1. Falcon 9 landing (2015), 2024 launches, Starship Flight 5, Starlink customers: spacex.com
  2. Orbital launches by country: Jonathan McDowell, planet4589.org

Energy

  1. U.S. crude oil production and LNG exports: U.S. Energy Information Administration, eia.gov
  2. Vogtle Units 3 & 4: Georgia Power, georgiapower.com
  3. Crane Clean Energy Center (Three Mile Island Unit 1 restart): Constellation Energy, constellationenergy.com

Robotics & Biotech

  1. Unimate, first industrial robot (1961): Smithsonian National Museum of American History, americanhistory.si.edu
  2. Digit at GXO: agilityrobotics.com · Electric Atlas: bostondynamics.com · Figure AI funding: figure.ai
  3. Salk polio vaccine: Salk Institute, salk.edu
  4. Human Genome Project: National Human Genome Research Institute, genome.gov
  5. Deaths averted by COVID-19 vaccines: Watson O.J. et al., "Global impact of the first year of COVID-19 vaccination," The Lancet Infectious Diseases, 2022, doi.org
  6. 2023 Nobel Prize in Physiology or Medicine: nobelprize.org

The Innovators

  1. ChatGPT 800 million+ weekly users: Sam Altman, OpenAI DevDay, October 6, 2025 (reported by TechCrunch)
  2. AlphaFold and the 2024 Nobel Prize in Chemistry: nobelprize.org
  3. NVIDIA first to $4 trillion, July 9, 2025: Bloomberg
  4. SpaceX 134 orbital launches in 2024: NASASpaceflight; Spaceflight Now
  5. New Glenn reaches orbit on first flight, January 16, 2025: Blue Origin; Associated Press
  6. NuScale: first SMR design certified by the NRC (2023): energy.gov
  7. TerraPower Natrium groundbreaking, June 10, 2024: World Nuclear News
  8. Casgevy, first FDA-approved CRISPR therapy (December 2023): fda.gov
  9. Company founding years and headquarters: company websites and annual reports. Company names are used for identification only. USA CENTURY is not affiliated with any company.

Why America Leads

  1. The U.S. Constitution: National Archives, archives.gov
  2. World University Rankings 2026: Times Higher Education, timeshighereducation.com
  3. Immigrant founders of $1B startups: National Foundation for American Policy, 2022, nfap.com
  4. Dollar share of FX trading: Bank for International Settlements, Triennial Central Bank Survey 2022, bis.org · Reserve currency share: IMF COFER, data.imf.org
  5. U.S. share of 2024 global venture funding (~57%, $178B of ~$314B): Crunchbase News
  6. R&D spending: NSF National Center for Science and Engineering Statistics, ncses.nsf.gov
  7. Military expenditure 2024: SIPRI Military Expenditure Database, sipri.org

Quotations

  1. John F. Kennedy, Address at Rice University, September 12, 1962: jfklibrary.org
  2. Abraham Lincoln, Gettysburg Address, November 19, 1863: loc.gov
  3. Walt Whitman, Preface to Leaves of Grass, 1855: whitmanarchive.org

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