A to Z by Decade: 1900s

For each letter of the alphabet, guess the associated clue relating to major events and pop culture in the 1900s.

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Last updated: May 29, 2026

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Letter	Clue	Answer
A	Hallmark of rapid production during the Industrial Revolution	Assembly line
B	Empire which spanned the globe, containing roughly a quarter of the world’s population	British Empire
C	Country which gained independence from Spain on May 20, 1902	Cuba
D	Main character of L. Frank Baum’s The Wonderful Wizard of Oz	Dorothy
E	According to Albert Einstein’s Theory of Relativity, this equals mass times the squared speed of light, or mc^2	Energy
F	First affordable, mass-produced car introduced in 1908	Ford Model T
G	The largest immigrant group in the US according to the 1900 censes	Germans
H	Natural disaster which hit Galveston, Texas in 1900, which killed roughly 8,000 people	Hurricane
I	Practice which drove empires across Europe to take foreign colonies	Imperialism
J	Date which the Philippine-American War was declared over by Theodore Roosevelt	July 4th
K	Site where the Wright Brothers tested their first flight in 1903	Kill Devil Hills
L	City founded in 1905 with land from the deserts of Nevada	Las Vegas
M	Scientist who first isolated radium in 1902 alongside her husband, Pierre	Marie Curie

Letter	Clue	Answer
N	Robert Peary and Matthew Henson became the first two men to set foot here in 1909	North Pole
O	Major resource which was found in Texas, sparking an economic boom	Oil field
P	Era in the US spearheaded by Theodore Roosevelt, defined by environmental conservation and sweeping political reform	Progressive Era
Q	Dynasty which ruled China throughout the 1900s until its 1912 collapse	Qing Dynasty
R	War which solidified Japan as a major world power	Russo-Japanese War
S	Site of a 1906 earthquake which killed 3,000 people	San Francisco
T	Invented after Theodore Roosevelt refused to shoot a bear cub tied to a tree	Teddy Bear
U	Author of The Jungle, which prompted the Meat Inspection Act and the Food and Drug Administration in the US	Upton Sinclair
V	Era which ended with the 1901 death of the monarch for which it was named	Victorian Era
W	US president who was assassinated in 1901 while visiting Buffalo, New York	William McKinley
X	William Conrad Röntgen received one of the first ever Nobel Prizes for his discovery of these	X-ray
Y	Territory which turned from a Gold Rush frontier to a rapidly industrializing mining hub	Yukon
Z	Rigid airship out of Germany invented in 1900	Zeppelin

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1 Comments

Level 78

May 29, 2026

There is a typo in the clue for C: it should be May, not Maty.