{"text":"Steam locomotives carried mail across the countryside.","label":"pre-1900"} {"text":"The Manhattan Project developed atomic weapons.","label":"1900–1945"} {"text":"Sputnik launched and kicked off the space race.","label":"1946–1990"} {"text":"MySpace was the most popular social network for a while.","label":"1991–2008"} {"text":"The first iPads changed tablet computing.","label":"2009–2015"} {"text":"Fidget spinners were everywhere in middle schools.","label":"2016–2018"} {"text":"Schools went remote during the pandemic; everyone wore N95s and used Zoom.","label":"2019–2022"} {"text":"Creators blew up on TikTok and AI tools like ChatGPT became common.","label":"2023–present"} {"text":"Horse-drawn carriages lined unpaved city streets.","label":"pre-1900"} {"text":"Rationing and blackouts were common during the Blitz.","label":"1900–1945"} {"text":"The Berlin Wall symbolized Cold War tensions.","label":"1946–1990"} {"text":"The Iraq War dominated headlines; people used early Facebook.","label":"1991–2008"} {"text":"App stores exploded; people queued for new iPhones.","label":"2009–2015"} {"text":"Fortnite and Instagram Stories became daily habits.","label":"2016–2018"} {"text":"Lockdowns, PCR tests, and Zoom school were widespread.","label":"2019–2022"} {"text":"Hybrid work continues; large language models entered workplaces.","label":"2023–present"}