The Homespun Age was a time when people made or homespun all of their clothings and belongings.
The Renaissance Age was th age after the Middle ages.
A couple of alternatives would be 'eons' or 'millenia'
Ages and ages and ages means a really long time.
Many people use the two phrases the same way. But as far as professional history writing goes, the Dark Ages was the Early Middle Ages (476-100).
The Iron Age is after the Bronze Age.
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