Simplify the following text for a Grade 6 native English-speaking person.
Original: The Arica and Parinacota Region was created on October 8 , 2007 under Law 20.175 , promulgated on March 23 , 2007 by President Michelle Bachelet in the city of Arica .
Simplified: For the province , see Province of Arica . For the region , see Region of Arica and Parinacota .