latests
Who discovered the electron in 1897?
A) J.J. Thomson
B) Ernest Rutherford
C) Niels Bohr
D) James Chadwick
J.J. Thomson discovered the electron using cathode ray experiments in 1897, earning the Nobel Prize in Physics in 1906.
latests
A)
Columbus
B)
Magellan
C)
Drake
D)
Vasco da Gama
Ferdinand Magellan led the first expedition to circumnavigate the globe (1519–1522); although he died en route, the voyage completed the circuit.
latests
A)
Peso
B)
Real
C)
Dollar
D)
Cruzeiro
Brazil's currency is the Real (BRL), introduced in 1994 as part of economic stabilization efforts to control hyperinflation.
latests
A)
Egyptians
B)
Sumerians
C)
Indus Valley
D)
Chinese
The Sumerians developed cuneiform around 3200 BCE in Mesopotamia, marking the first recorded writing system in human history.
latests
A)
Amelia Earhart
B)
Bessie Coleman
C)
Valentina Tereshkova
D)
Harriet Quimby
Amelia Earhart completed her solo flight across the Atlantic in 1932, becoming a symbol of aviation and women’s achievement.
latests
A)
Napoleon Bonaparte
B)
Duke of Wellington
C)
Louis XVI
D)
Otto von Bismarck
Napoleon Bonaparte was defeated at Waterloo by the Duke of Wellington and Prussian forces, ending his rule and the Napoleonic Wars.
latests
A)
Colorado
B)
Rio Grande
C)
Mississippi
D)
Columbia
The Rio Grande (Río Bravo) forms a long stretch of the US–Mexico border, serving as a geographic and political boundary.
latests
A)
Polio
B)
Smallpox
C)
Rabies
D)
Measles
Edward Jenner developed the smallpox vaccine in 1796, using cowpox material, revolutionizing medicine and disease prevention.
latests
A)
South America
B)
Central America
C)
North America
D)
Caribbean
The Maya thrived in Central America, particularly Mexico, Guatemala, and Honduras, known for their calendar, writing, and cities.
latests
A)
Mendeleev
B)
Dalton
C)
Curie
D)
Avogadro
Dmitri Mendeleev organized the periodic table in 1869, predicting properties of undiscovered elements.
latests
A)
Boyle
B)
Dalton
C)
Lavoisier
D)
Avogadro
Antoine Lavoisier standardized chemical nomenclature, discovered oxygen’s role in combustion, and is considered father of modern chemistry.
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