in the 1940s led to the creation of the
term flying saucers. It then became
popular to call all UFOs flying saucers.
The U.S. government has kept records
of thousands of UFO sightings. These
records include photos of UFOs and
recordings of interviews with people
who claim to have seen them. In the
1950s scientists chosen by the government
studied hundreds of sightings.
Most of the sightings turned out to be
space objects, such as stars, bright planets,
or meteors. Many other sightings
were aircraft, birds, or hot gases. Often
these sightings happened in unusual
weather conditions.
The scientists’ findings did not stop
UFO reports, however. By the mid–
1960s UFO sightings were more numerous
than ever. The U.S. government
continued to say that UFOs were not
evidence of alien life. Most scientists
agreed. But some UFO sightings
remained unexplained. Even today a few
scientists believe that some UFOs could
be visitors from outer space.
Union of Soviet
Socialist
Republics
The Union of Soviet Socialist Republics
(U.S.S.R.), or Soviet Union, was the
first country to form a government and
an economy based on the system known
as Communism. The Soviet Union was
in existence for only about 70 years,
from 1922 to 1991. For much of that
time, however, it was one of the most
powerful countries in the world.
Clouds can often form strange shapes.
Some people may see such a cloud and
think that it looks like a flying saucer.
10 Unicorn BRITANNICA STUDENT ENCYCLOPEDIA
Land
The Soviet Union was the largest country
that ever existed. It covered more
than 8.6 million square miles (22.3 million
square kilometers) in Europe and
Asia—almost two and one half times the
area of the United States.
The Soviet Union was made up of 15
states. The states were called republics.
The largest and most powerful republic
was the Russian Soviet Federated Socialist
Republic, which is now called Russia.
The modern names for the other republics
are Estonia, Latvia, Lithuania,
Belarus, Ukraine, Moldova, Georgia,
Armenia, Azerbaijan, Kazakhstan, Turkmenistan,
Uzbekistan, Tajikistan, and
Kyrgyzstan. The capital of the Soviet
Union was Moscow, which was also the
capital of Russia.
People
In its last years, the Soviet Union had
the world’s third-largest population—
more than 290 million people. The
country had more than 100 groups of
different peoples. Ethnic Russians made
up the largest group by far. The nextlargest
groups were Ukrainians, Uzbeks,
Belarusians, and Kazakhs. Russian was
the official language, but more than 200
other languages existed in the country.
The Soviet government did not approve
of religion. Even so, the Russian Orthodox
Christian church survived. There
were also many Muslims, or followers of
Islam, in some republics.
During the time the Soviet Union
existed, millions of people moved from
farms to cities. By 1991, two out of
The Russian republic was by far the largest of the 15 republics that made up the Soviet
Union.
BRITANNICA STUDENT ENCYCLOPEDIA Union of Soviet Socialist Republics 11
every three Soviet citizens lived in a city.
Moscow, Leningrad (now Saint Petersburg),
and Kiev (now in Ukraine) were
the largest cities.
Culture
The government of the Soviet Union
controlled all parts of life in the country.
The people were not allowed to speak
openly to oppose the government. During
the late 1920s and 1930s the government
even put a stop to free artistic
expression. Artists and writers were
allowed to say only good things about
the Soviet system. The government put
many artists and writers in prison. Others
left the country.
A few Soviet writers still produced great
work. Boris Pasternak won the Nobel
prize for literature in 1958, and Aleksandr
Solzhenitsyn won it in 1970. Pasternak
had to refuse the award, and
Solzhenitsyn was forced to leave the
country.
Economy
During its most powerful period, the
Soviet Union had one of the world’s
strongest economies. Agriculture, mining,
and heavy industry all made big
contributions to national wealth. The
government completed many large
projects such as dams and canals.
According to Communist teachings,
individuals should not be allowed to
own businesses. So the government
owned almost all businesses and factories
in the Soviet Union. Communist
Party leaders decided what kinds of
products would be made and how much
the people would pay for them. The
system led to shortages of many of the
products that people needed.
The Communist system was also supposed
to give farmers and workers a fair
share of the country’s wealth. However,
farmers suffered greatly when the gov-
The Soviet government built plain high-rise
apartment buildings in Moscow and other
big cities. The buildings were needed to
house the many people who moved to the
cities from farms.
“For the Defense of the U.S.S.R.”
is the message of a 1929 poster.
It shows factories, warplanes,
and soldiers on the march.
12 Union of Soviet Socialist Republics BRITANNICA STUDENT ENCYCLOPEDIA
ernment took their land and created
large farms called collective farms. By
the 1970s the Soviet Union had to buy
food from other countries to feed its
people.
History