When Philon of Byzantium declared the Ancient 7 Wonders, the then-known world was very small, spanning around the Eastern part of the Mediterranean Sea. Today, of course, we are aware of the 7 continents that make up the globe—our world is much larger than that of 2,000 years ago. Should this mean that there should be, instead of only 7, maybe 21, 100, or why not even 1,000 New Wonders of the World? This logical question has been asked often over the past years. However, it is not only in tribute to the original Greek concept that New7Wonders has stuck with the number 7 in the first campaign and now in the current campaign … there is another very interesting and important reason for this. It is a fact that 7 is not only a magical number, but also a very practical one:
7 things is exactly the number of things that the average person can remember.

* When people are asked to choose a number between one and 10, the most popular choice is 7, all over the world
* 7 is the number of periods (or rows) of elements on the periodic table in chemistry.
* 7 colors that make up white light ROYGBIV (red, orange, yellow, green, blue, indigo and violet).
* 7 external holes in the human head: two eyes, two nostrils, two ears and one mouth.
* The Jewish Torah and the Christian Old Testament recount that God rested on and sanctified the 7th day.

* Further East, Buddha walked 7 steps at his birth.
* In Islamic tradition, 7 is used to symbolize infinity and is also the number of heavens and earths.
* Ancient Egyptians saw the number 7 as a symbol of eternal life.
* In Japanese mythology, you will find 7 Lucky Gods.
* In Hinduism, the cycle of rebirths goes through 7 stages before the soul attains salvation.
* Musically, 7 is the number of notes in the traditional Western major scale.
* 7 Deadly Sins and the 7 Virtues that are well known in Western culture.