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DavidB4-bot

clean up & uniformity

Foxtrot

subcat, bold

Aschlafly

Reverted edits by Hagar (Talk); changed back to last version by SeanTheSheep

Hagar

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SeanTheSheep

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SeanTheSheep

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Leopeo

Many grammar corrections

SeanTheSheep

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SeanTheSheep

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SeanTheSheep

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DanH

Reverted edits by Strong, manly and courageousAfrican Countries of Portuguese Official Language ([[User_talk:Strong, manly and courageousAfrican Countr

Strong, manly and courageousAfrican Countries of Portuguese Official Language

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Jaques

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Sterile

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Sterile

New page: A polygon of four sides. Each pair of opposite sides is of equal length. However, the adjacent sides do not need to be of equal length. The adjacent sides also are perpendicular. A...