When was this clue last seen?

This clue last appeared in the NYT Crossword on Thursday, 29 June 2023.

One-sixth of the world's ground surface until 1991, in brief

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world'ssurfaceground

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This clue appeared in the NYT Crossword on Thursday, 29 June 2023. The answer USSR is a 4-letter entry.

This answer appears frequently in crosswords. View USSR answer history →

What is the answer to "One-sixth of the world's ground surface until 1991, in brief"?: USSR
How many letters is the answer to "One-sixth of the world's ground surface until 1991, in brief"?: The answer has 4 letters.
When was this clue last seen?: This clue last appeared in the NYT Crossword crossword on Thursday, 29 June 2023.
Has this crossword clue appeared before?: Yes. Variations of this clue have appeared 21 other times.

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