Definition: Bactria was located in the northwestern portion of Afghanistan and Tajikistan. Its ancient capital was also known as Balkh. Bactria, a satrap or province of the Persian Empire bounded by Parthia, Aria, Drangiana and Arachosia, and part of the Silk Road, was partly conquered by Alexander the Great. After Alexander, Bactria fell to Seleucus.
Bactria is thought to have been the home of Zoroaster (www.bookrags.com/history/worldhistory/bactria-ema-01/) Bacctria History Summary.
