1: What are the most popular birthday months?

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2: Which zodiac signs are most common?

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3: Traditions around the world for birthdays

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4: Famous celebrities born on popular birthday dates

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5: Birthday party ideas for all ages

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6: The history of birthday celebrations

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7: How to plan a memorable birthday surprise

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8: Unique birthday gift ideas for loved ones

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9: Fun facts about birthdays around the world