Simplify the following text for a Grade 7 native English-speaking person.
Original: Dacians , considered a part of the Getae tribes mentioned by Herodotus , were a branch of Thracians that inhabited Dacia ( corresponding mostly to present-day Romania ) .
Simplified: The Getae were called the Dacians by the Romans . They were Thracians who were living in Dacia , which is where Romania , Moldova and the northern part of Bulgaria are now .