Elected officials assume public office for non-renewable 8 year terms. Similar civilizations have been recorded in China, Maya, and Hindu. The Oromos have developed their own unique calendar based on lunar and solar cycles. Day time begins and ends with the rise and setting of the sun. Days of the month are given names.
Marriage is with a non-relative.
Relatives are those whose seven or less ancestors converge. Some can trace more than seventeen. Regional trades in antiquity in gold, ivory, myrrh, etc. with Pharaonic Egypt, Greece, Rome and Persia. With universal male training in warfare, the Oromo remained independent until the last decade of the 19th century.