This scientist who developed the theory of relativity changed physics forever.
Albert Einstein
This city where a famous wall divided East and West until 1989 is now a symbol of reunification.
Berlin
This device which you use every day can make calls, take photos, and connect to the internet.
smartphone
This year when humans first landed on the Moon is remembered as a major milestone in space exploration.
1969
This civil rights leader who gave the “I Have a Dream” speech became a symbol of peaceful protest.
Martin Luther King Jr.
This island nation which is home to the Great Barrier Reef attracts millions of tourists each year.
Australia
This object that people carry to pay for things is often made of plastic or leather.
wallet
This period when the internet became widely available changed how people communicate and share information.
the 1990s (or the 1990s dot-com era)
This author who wrote about a boy wizard helped revive interest in reading among children worldwide.
J. K. Rowling
This river which flows through Cairo has been central to Egyptian civilization for thousands of years.
the Nile
This invention which transformed long-distance communication was developed in the 19th century by Bell and others.
the telephone
This festival which takes place every four years brings together nations to compete in many sports.
the Olympic Games
This artist who painted the Mona Lisa lived and worked during the Italian Renaissance.
Leonardo da Vinci
This mountain where climbers face extreme altitude and weather is the world’s tallest above sea level.
Mount Everest
This tool whose blade folds into its handle is popular for camping and everyday tasks.
pocketknife (or folding knife)
This event that is observed on December 25th is celebrated by many people around the world.
Christmas
This woman who became the first female Prime Minister of the United Kingdom led the country in the 1980s.
Margaret Thatcher
This country which is known for tulips, windmills, and canals has Amsterdam as its capital.
the Netherlands
This item that photographers use to make images brighter in low light is measured in f-stops.
camera lens (aperture)
This day when many countries remember soldiers who died in wars falls on November 11th.
Remembrance Day (or Armistice Day / Veterans Day)