The United States entered 2018 amid intense political division and ended it with divided control of Congress. A false missile warning frightened Hawaii in January, and a February shooting at Marjory Stoneman Douglas High School in Parkland, Florida, killed 17 people. Survivors organized nationally, helping bring large crowds to March for Our Lives demonstrations. In November, voters gave Democrats control of the House while Republicans expanded their Senate majority, producing the divided government that would begin in January 2019.
Technology and science supplied some of the year's most widely shared images. SpaceX launched Falcon Heavy for the first time, sending a Tesla Roadster into space while two side boosters landed together in Florida. In July, an international rescue team brought 12 boys and their soccer coach out of Thailand's flooded Tham Luang cave. Americans also watched Facebook chief executive Mark Zuckerberg testify before Congress after disclosures about Cambridge Analytica's access to user data sharpened concern about privacy and political advertising online.
The year's cultural and international stories ranged from the PyeongChang Winter Olympics to the wedding of Prince Harry and Meghan Markle. President Donald Trump and North Korean leader Kim Jong Un met in Singapore, the first summit between sitting leaders of their countries, and signed a broad statement on relations, peace and denuclearization. Late in the year, the Camp Fire destroyed most of Paradise, California, killed 85 people and became the deadliest and most destructive wildfire in the state's recorded history at that time. Those events made 2018 a year in which dramatic public moments repeatedly led to longer arguments about safety, institutions and responsibility.
Gold dots on the calendar above mark these dates. Articles are researched from primary and authoritative sources listed on each page.