History of the Universe

History of the Universe eBook. 398 pages, 300 illustrations only $2.99

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Solar System 4.65 bya

We now come to only the second event in this story to which we can give a definite date. The first was the creation of the Universe, which took place about 13.7 billion years ago, and now we meet the origin of the Solar System about 4.65 billion years ago.

Up until this point we have been giving dates since the creation. From now on we will be able to give many more dates, so this is a good time to remind ourselves about the way we show ages.

In this website:

    mya means “million years ago”. A million is one thousand thousand.

    bya means “billion years ago”. One billion is one thousand million.

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