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Julian Date Calculator

Gruffalo doubling problems: a fun interactive powerpoint on doubling that is ideal for a mental oral starter or as a plenary to round off a lesson

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Julian Barnes on the late, great Penelope Fitzgerald Innocence – the first of Fitzgerald's four late novels – is as shrewd and calculating as its main characters are not

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Discovered by accident, this manuscript page provides graphical insight to astronomy in medieval times, before the Renaissance and the influence of Nicolaus Copernicus, Tycho de Brahe, Johannes Kepler, and Galileo. The intriguing page is from lecture notes on astronomy compiled by the monk Magister Wolfgang de Styria before the year 1490 at Melk Abbey in Austria.

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Calendar Converter. Most people don't realize that the dates recorded by people who lived in the past don't exactly translate to today's dates because they used different calendars. For example, Christopher Columbus said he left on August 3, 1492. However, that date is on the Julian Calendar. Our calendar is Gregorian--which means he actually left on August 12th, 1492. This calendar converter does Gregorian, Hebrew, Islamic, Julian, Mayan, and Persian calendar systems.

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Learn how to calculate quilt fabric yardage

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