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Friday the 13th

Are you a believer? Do you cringe when a Friday the 13th appears...suffer from Paraskevidekatriaphobics? Consider these questions to shift your attention until the day is passed.

Does a Friday the 13th have to occur every year? Why or why not?

What is the maximum number of Friday the 13ths that can occur in a given year...1, 2, 3, 4, 5...? Explain.

Could Friday the 13th's occur in subsequent months? Explain.

Historically, why is the number 13 considered unlucky? Is it considered to be a lucky number in any country or culture?

What special event is supposed to occur on Friday, April the 13th, 2029?

If you want to check your answer to these questions, just Google the terms "Friday" and "unlucky."