Precise language
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Time of day
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Day, month and season names
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Full date formatting
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Format consistency
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Strong national ties to a topic
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Retaining the existing format
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Dates of birth and death
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Other date ranges
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Linking and autoformatting of dates
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Longer periods
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Year numbering systems
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Calendars
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Time zones
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Numbers as figures or words
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Typography
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Delimiting (grouping of digits)
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Large numbers
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Fractions
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Decimal points
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Percentages
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Natural numbers
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Repeating decimals
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Non-base-10 notations
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Scientific notation, engineering notation, and uncertainty
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Notations
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Uncertainty
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Which units to use and how to present them
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Unit conversions
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Avoiding ambiguities
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Unit names and symbols
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Conventions
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Unit names
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Unit symbols
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Units and symbols often written incorrectly
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Quantities of bytes and bits
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Adopting suggestions from standards bodies
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