i think it was 2009 i think it was 2009
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1706, it is also that same year that the letter "pi" (from the Greek alphabet) was first used in publication.
One Light Year is equal to 9454254955488 Kms
Kilometers
9.46*1012 km or 9.46e12 km or in other words, 1 light-year.
it's the same formula that the one used to transform kilograms in kilometers