Invertebrate animals appear during the Ediacaran period, while vertebrates originated about during the Cambrian explosion.
The breed originated about the 1660s as a cross between native horses of Spanish origin used by the earliest colonists and English horses imported to Virginia from about 1610.
The movement originated about two decades ago as a spin-off from San Francisco's Critical Mass community ride.
Genetic data indicate the family originated about 30 40 million years ago.
Brown bears originated about 600,000 years ago in China and were first reported in Europe about 250,000 years ago.
Maltese, breed of toy dog named for the island of Malta, where it may have originated about 2,800 years ago.
The dance apparently originated about 1700 in the valley (Scottish strath) of the River Spey in Scotland.
The Poland China originated about 1860 in southern Ohio from a number of different breeds common to that area.
The Ancestral Pueblo (Anasazi) pueblo at Pecos National Monument originated about 1300 and endured for over five centuries.
Life originated about 3.5 billion years ago in the form of primordial organisms that were relatively simple and very small.
