It is suggested that 5,000-6,000 years ago people in the Middle East and North Africa started to allot specific lengths of time to tasks.
据说，在5000至6000年前，中东和北非的人们开始分配特定时间段来完成任务。
In the Middle East and North Africa, nothing analogous occurred.
但在中东和北非，并没有发生类似的变化。
Why has the same process not applied in the Middle East and North Africa?
可为什么同样的程序在中东和北非就不适用呢？
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