The "Normans" <span>invaded England in 1066, led by William the Conquerer, since this invasion brought in a new era in England that caused many of todays customs to form. </span>
In 1969 at a UNESCO Conference in San Francisco, peace activist John McConnell proposed a day to honor the Earth and the concept of peace, to first be celebrated on March 21, 1970, the first day of spring in the northern hemisphere.
One of the most significant contributing factors was their location on the Mediterranean, which made trade far easier, while one of the factors contributing to the fall was their loss of the Peloponnesian War.
