8520
In 2000 , Bronze Age buildings were found destroyed by a mudslide that had been triggered by an earthquake in the north-east part of the site .
 time: Bronze Age
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 time: Bronze Age