Emperor Diocletian thought he could get the Roman government out of the crisis by changing the tax system to try to increase revenues. However, this maneuver was not as successful as he imposed price and wage controls that put pressure on both the rich and the poor. It also placed restrictions on citizens' rights to choose their jobs. Available gold was sent to the East to pay for luxury goods instead of using it to make Roman coins. Therefore, this led to the devaluation of the Roman currency and the return of the trading system. On the other hand, historians believe that slave labor was also part of this economic crisis. The number of slaves increased during the first 2 centuries of the empire. They relied primarily on slaves to do manual labor, so they stopped looking for new technologies to produce their goods more efficiently and quickly. As a result, the slaves could not take it anymore and this led to a revolt led by the slave gladiator Spartacus. In addition, the attitude towards slaves changes because of Christianity. All of these things led to a decline in power and resources allowing the Roman Empire to remain stable and