Simplify the following text for a Grade 2 native English-speaking person.
Original: Î 1\/4 Î Î Î , IdoumaÃ a ; Latin : IdumÃ a or Idumea ) was a 1st millennium BC Iron Age kingdom of southern Jordan .
Simplified: Î 1\/4 Î Î Î ( IdoumaÃ a ) . In Latin , it was IdumÃ a or Idumea .