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The First Day of Spring

Today (March 20, 2012) is the Spring Equinox, or as we all know it, The First Day of Spring. It could also be the first day of Summer with the weather we’ve been having!

An equinox occurs twice a year, when the tilt of the Earth’s axis is inclined neither away from nor towards the Sun, the center of the Sun being in the same plane as the Earth’s equator. The term equinox can also be used in a broader sense, meaning the date when such a passage happens. The name “equinox” is derived from the Latin aequus (equal) and nox (night), because around the equinox, the night and day have approximately equal length.

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