Miri
History
Settlers
Religion
Environment
Animals
Economy
Communities
Population
Federation Intelligence Files
Extensive search of Earth records from the Eugenics War period, plus the following recovery years has resulted in the recovery of a few documents that support the belief that the colony on Ophiucus IV was founded by colonists from earth during the first wave of space colonization. (1990 to 2030)
This is further supported by the isolationist attitude taken by the governing body during early contact with space explorers from Earth. As a result no further contact was established until Captain James T. Kirk of the USS Enteprise answered a distress call in 2266.
See Starfleet records File 2266-28473, Miri for a complete record of the USS Enteprise actions on the surface of the planet.
To understand why Ophiucus IV looks so much like Earth see Hodgkin's Law of Parallel Planetary Development.