text,label
"Telegraphs and steam power were essential tools of 19th century communication.",pre-1900
"Horse-drawn streetcars transported city passengers before automobiles.",pre-1900

"World War II battles transformed global alliances and power structures.",1900-1945
"Radio dramas became a popular form of entertainment during the 1930s.",1900-1945

"Protests against the Vietnam War spread across U.S. campuses.",1946-1979
"The moon landing in 1969 symbolized technological achievement.",1946-1979

"The rise of home video game consoles reshaped family entertainment.",1980-1999
"Email and early internet forums connected people globally for the first time.",1980-1999

"Smartphones rapidly replaced flip phones after 2010.",2000-2015
"Streaming services disrupted traditional cable television models.",2000-2015

"Zoom meetings became a global norm for workplaces during the pandemic.",2016-present
"Electric cars gained widespread acceptance in the late 2010s and early 2020s.",2016-present