Milestones

• World Population Reaches 8 Billion
• Trail of Tears
• COVID-19 Pandemic
• Antibiotics
• World Population at 9 Billion
• Freshwater Scarcity
• Living Beyond Our Means
• World’s Largest Solar Plant
• Hole in the Ozone Layer Shrinking
• Record-breaking CO2 Concentrations
• U.S and China to Curb Carbon Emissions
• More Megacities
• Warming Temperatures
• Effects of Climate Change
• Meat Production Rising
• Future of Megacities
• Global Cancer Burden
• Coral Reefs in Danger
• Urban World
• World Hunger
• Farm Labor
• Safe Drinking Water Goal
• Growing Ecological Footprint
• Deepwater Horizon Oil Spill
• World Population Reaches 7 Billion
• Earthquake and Tsunami in Japan
• Lifestyle Diseases on the Rise
• Recycled Content of Paper
• Global Health Progress
• Hybrid Electric Cars
• World Population Reaches 6 Billion
• Meat Consumption Rising
• Millennium Development Goals
• Obesity Epidemic
• Human Genome Sequenced
• Katrina Strikes New Orleans
• An Inconvenient Truth
• China Surpasses U.S. as Largest Carbon Emitter
• Global Fisheries in Jeopardy
• Climate Change is Unequivocal
• Global Financial Crisis
• Union Carbide Disaster in Bhopal, India
• Hole in the Ozone Layer
• Nuclear Meltdown at Chernobyl
• World Population Reaches 5 Billion
• Declining Biodiversity
• The IPCC
• World Wide Web
• Passing 350 ppm
• Exxon Valdez Oil Spill
• Jobs vs. Owls
• Iodine Deficiency Prevention
• The Earth Summit
• GMOs in our food supply
• World Population Conference
• Rwandan Genocide
• Ban of DDT
• Cellular Phone
• An End to Leaded Gas
• Curbside Recycling
• World Population Reaches 4 Billion
• First Female President
• Cambodian Genocide
• Tobacco Consumption
• Test-Tube Baby
• Home Pregnancy Test Kit
• Toxic Waste at Love Canal
• Nuclear Meltdown at Three Mile Island
• China’s One-Child Policy
• Smallpox Eradicated
• Solar Power
• HIV Identified
• Silent Spring Sparks a Movement
• Farm Workers Rights
• Environmental Protection in America
• Smoking Warnings
• The Bullet Train
• Family Planning in Iran
• The Population Bomb
• The Tragedy of the Commons
• Measles Vaccine
• A Walk on the Moon
• Santa Barbara Oil Spill
• The Cuyahoga River Fire
• Earth Day and the EPA
• Green Revolution
• Earth’s Ecological Footprint
• First Email Sent
• Family Planning in India
• First Solar Cell
• Polio Vaccine
• The Space Race
• The Great Leap Forward
• Curbing Urban Sprawl
• CO2 Monitoring in Hawaii
• New Auto Emission Laws in California
• World Population Reaches 3 Billion
• Birth Control Pills
• World Food Program
• Discovery of DDT
• World War II
• Cigarettes in WWII
• The Holocaust
• Species Protection in America
• Manhattan Project
• The United Nations
• The Baby Boom
• Rise of Poultry Consumption
• Malaria Eradication Efforts
• Migration Between India and Pakistan
• World Health Organization
• Universal Declaration of Human Rights
• Megacities
• First Self-Service Grocery Store
• Hermetically-Sealed Refrigerator
• Spanish Flu Epidemic
• Women€™’s Suffrage
• Advent of Frozen Foods
• World Population Reaches 2 Billion
• First World Population Conference
• Invention of the Television
• The Great Depression
• The Dust Bowl
• Kwashiorkor
• Hoover Dam
• Washing Machine
• Electricity-Generating Windmill
• Ellis Island Opens
• First Voting Machine
• The Sierra Club
• Invention of the Radio
• Invention of Air Conditioning
• Wright Brothers Flight
• Workers’ Rights
• Meat Inspection Act
• Ford’s Model T
• Beginning of Chemical Fertilizer
• World War I
• Genocide in the Ottoman Empire
• Passenger Pigeon Driven to Extinction
• First Birth Control Clinic
• Pasteurization
• Charles Darwin and Evolution
• U.S. Conservation – National and State Parks
• The National Labor Union
• Transcontinental Railroad Completed
• American Public Health Association
• Aquaculture in the U.S
• Epic Droughts
• Alexander Graham Bell’s Telephone
• Light Bulb
• Malaria
• Gas-powered Car
• Hydrogen Fuel Cell
• Child Labor
• First Fertilizer Factory
• Start of Public Health Movement
• Invention of the Telegraph
• Irish Potato Famine
• Pioneer of Antiseptic Procedures
• Women’s Suffrage Movement
• First Female Doctor in U.S.
• Pre-Industrial CO2 Levels
• Water-borne Diseases and Sanitation
• American Romanticism
• Rubber Condom
• Thresher
• First U.S. Census
• Eli Whitney’s Cotton Gin
• Smallpox Vaccine
• Thomas Malthus
• A City of One Million
• World Population Reaches 1 Billion
• Lewis and Clark Expedition
• Invention of Canning
• Iodine in Salt
• Commercial Natural Gas Well
• Steam-Powered Railway
• City Public Transit
• New Farm Equipment
• Sustainable Resource Management in Japan
• Leeuwenhoek Observes Microbes
• Urban Planning in Pennsylvania
• Commercial Steam Engine
• Seed Drill
• Personal Sacrifice in India
• Effects of the Industrial Revolution
• Flush Toilet
• Capitalism
• The Great Exchange
• African Slave Trade
• Smallpox in the Americas
• Copernicus and his Heliocentric Model
• Compound Microscope
• Collapse of Easter Island
• Jamestown Settlement
• Invention of Forceps
• Peace of Westphalia
• Age of Enlightenment
• The Little Ice Age
• Magnetic Compass
• The Great Famine
• Aztecs
• The Black Death
• Aquaculture in the Ming Dynasty
• Pollution Control in England
• Age of Iron in West Africa
• Aztec Medicine
• Invention of the Printing Press
• Voyages of Christopher Columbus
• Maritime Route between Europe and India
• Gunpowder Discovered
• First Windmills
• Smallpox Identified
• Medieval Warm Period
• Pound Lock
• Avicenna and The Canon of Medicine
• Angkor Wat
• Paper Money
• Forestry in Germany
• Cloth Mills
• Blast Furnace in Europe
• Mongol Invasions
• Energy from Coal
• Al-Mansuri Hospital
• First Oil Wells
• Water Mill
• Breastcollar Horse Harness
• Fall of the Roman Empire
• Peak of the Mayan Civilization
• Dust Veil Event in South America
• Justinian Plague
• Heavy-wheeled Plow
• Three-crop Rotation
• Beginning of Islam
• Papermaking in the Arab World
• Japanese Smallpox Epidemic
• Decline of the Mayan Civilization
• Roman Aqueducts
• Spice Trade
• Chinese Medicine
• Horse Collar
• Roman Roads
• Papermaking in China
• The Silk Road
• Ptolemys Geographia
• Antonine Plague
• Christianity and the Roman Empire
• Golden Age of India
• Major Civilizations