as the fifth century/as in the fifth century


Senior Member
Chinese - Hong Kong
Hi all,
Between the two sentences below, which one is correct? And why? Could someone give me an answer? Thank you in advance!

1. The poem was written as early as the fifth century.
2. The poem was written as early as in the fifth century.
  • Glasguensis

    Signal Modulation
    English - Scotland
    1 is correct, because the relationship between the poem and the fifth century is defined by either “in” or “as early as”, but not both.
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