Original: The empire was put under the authority of a regent in the person of Perdiccas in 323 BC, and the territories were divided between Alexander's generals, who thereby became satraps, at the Partition of Babylon in 323 BC.
Simplified: The empire was put under the property of a regent in the person of Perdiccas in 323 BC, and the territories were divided between Alexander's generals, who thereby became satraps, at the Partition of Babylon in 323 BC.