Gila trout, native only to headwater streams that vein over the Mogollon Rim of New Mexico and Arizona, have expressed in their genetic makeup a mapping of how to survive in the vestiges of what surely was a large and contiguous range.
The Magna Carta was a significant influence on the long  historical process that has resulted in the rule of constitutional  law today.    The Magna Carta came about because King John (who only became king  in 1199 when his brother King Richard I died) had a reputation for  being tyrannical. His reign was marred by continuous war losses,  beginning with the loss of Normandy to Philippe Auguste of France  and ending with England torn by civil war.
Magna Carta went on to change the world, Prime Minister David Cameron has said, at an ceremony in Surrey marking the 800th anniversary of the document that heralded modern democracy. The event at Runnymede, where King John sealed the original accord in 1215, was attended by the Queen and other royals.