At the age of 30 they were allowed to live with their families, but continued to train until the age of 60 when they retired from military service. ... Because this did not happen until they were 18-20, they were more emotionally mature when they married and closer to the age of their husbands.
Answer:
every earthquake is recorded on numerous seismographs located in different directions. Knowing this helps them calculate the distance from the epicenter to each seismographs. To determine the direction each wave traveled, scientist draw circles around the seismographs locations