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East

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East is one of the four cardinal directions. These cardinal directions are the main points of a compass. East is the exact opposite direction of west. On Earth, east is the direction where the Sun appears to rise every morning. This happens because of how our planet moves. The Earth rotates about its axis toward the east. This rotation makes the Sun seem to move across the sky.

Compass Rose English East
Compass Rose English East

The history of the word "east" is tied to the morning light. In Middle English, the word was "est." This came from the Old English word "ēast." These words come from even older Proto-Germanic roots. Those roots mean "east" or "toward the sunrise." The very oldest roots come from Proto-Indo-European words meaning "to shine" or "dawn." This connection to light is seen in many other languages. For example, the Latin word "aurora" means dawn. The Greek word "ēōs" also means dawn or east.

Compass Rose English East
Compass Rose English East

Other languages use similar ideas to name this direction. In Latin, the word "oriens" means east or sunrise. This comes from the verb "orior," which means to rise or originate. The Greek word "anatolé" also comes from a word meaning to rise. Even in Hebrew, the word "mizraḥ" relates to rising or shining. Some people believe a Germanic goddess named Ēostre represented the dawn. She might have been a personification of the dawn and the cardinal points. These names all show that humans have always linked east to the start of the day.

Navigators use specific tools and rules to find east. On a compass, you can find east by setting a bearing. This is also called an azimuth. To go east, you set the bearing to 90 degrees.

Compass Rose English East
Compass Rose English East

Most maps follow a specific convention for direction. By convention, the right-hand side of a map is east. This rule exists because compasses usually place north at the top. However, directions can change on other worlds. Planets like Venus and Uranus rotate in a way called retrograde. This means they rotate the opposite way. On those planets, east is actually on the left side of a map.

In the Middle Ages, people used different names for the east. They often called it the "Orient." You might see this written as the letter "O" on old maps or compasses. Today, we usually use the letter "E" as an abbreviation. The term "Orient" is often used to describe the Eastern world. This is usually in relation to Europe. In English, it is a metonym for the continent of Asia. This includes regions like the Far East, the Middle East, and the Near East. Even though this view is Eurocentric, these regions are still east of the geographical center of Earth.

Culture and religion have also been shaped by this direction. The practice of praying toward the east is very old. This tradition is older than Christianity itself. Christianity adopted this practice because the Orient was thought to be mankind's original home. Because of this, Christian churches were traditionally built facing the east. This led to the concept of liturgical east and west. In many churches, the altar is placed on the liturgical east. This shows how a simple direction can influence how buildings are designed.

Even the environment in cities can be affected by direction. One study looked at how wind affects urban areas. In some individual cities in the Northern Hemisphere, the east end is often poorer. This may happen because the prevailing winds blow from the west. This means the wind carries things from the west toward the east. Understanding east helps us understand how wind, light, and people all interact on our planet.

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File:Compass Rose English East.svg
Compass Rose English East.svg
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