Orange originated thousands of years ago in Asia, such as China and Assam in India, where oranges were cultivated since 2500 BC. Oranges (sour variety) were relished only by the people in South East Asia, while people in the Middle East, Greece, Italy, and other parts of the world were unaware of this luscious fruit.
Oranges are one of the most popular fruits around the world for several reasons, commonly available source of vitamin C. It is a member of the citrus family along with lemons, limes, and grapefruit. An orange has a tough shiny orange skin. Inside the fruit is divided into segments, which have thin tough skins that hold together many little sections with juice inside. There are usually ten segments in an orange, but sometimes there are more. Inside each segment of most types of orange there are seeds called pips.
There are more than 16 varieties of oranges grown in the world. The most popular variety is the Valencia, Navel, Delta Seedless and Moro Orange.