Slavery for sure. I believe the second one is economic differences between the North and the South.
During the cold war the US and Russia both had nuclear weapons because If one side decided to attack the other it was ensured that the other would see equal or even more destruction. Basically the mutually assured destruction or MAD deterred people from attacking because they knew they would be destroyed aswell in turn. Preventing military conflict by the mutual understanding that if you provoke or attack us it wont be to far away from us attacking you back
Hinduism is the oldest religious philosophy still practiced today. And Buddhism made its appearance a few hundred years later, having its roots in Hinduism.
Buddhism and Hinduism are similar in that they both believe in reincarnation.
Buddhism and Hinduism are similar in that they both use meditation.
Buddhism and Hinduism are similar in that they both avoid attachment. Both Buddhists and Hindus practice non-attachment. This is mainly focused on material things and people. His belief is that attachment to material things will result in reincarnation. What to try to avoid. Therefore, both Hindus and Buddhists try to live spiritually. Avoiding attachment to the material world.
Among the differences that we can point out between these two models of philosophy and religion, it starts at a fundamental point. Hinduism believes in deities, Buddhism does not. In Buddhism, while after death what survives is the mind, in Hinduism, it is the soul.
Furthermore, when in meditation, the Buddhist aims to clear his mind, calming it down and establishing a moment of silence and peace, the Hinduist seeks, in this process, to reach a state of superior, transcendental mind.