What are two terms used to describe the period between ancient and modern times

The Middle Ages is the termed used. Medieval and The Dark Ages.

Why? Began in the Dark Ages and latin word used was Medieval.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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the french revolution was when many people were persecuted for disagreeing or making separate government