Sweden has its own variation of this tradition; before a wedding, the brideâs mother gives her a gold coin to put in her right shoe and the brideâs father gives her a silver coin to put in her left shoe. The coins represent their wish that she will never be without.
There are a few rocks around that are 4.5 billion years old. Most meteorites are about that old too. The previous star that went nova and left us all these rocks and stuff pretty much cleared the area of older stuff. The Sun is a 3rd generation star.
The geologic age of the Rocky Mountains varies based on location. For example the youngest parts were uplifted 100 million to 65 million years ago, whereas the older parts rose 3,980 million to 600 million years ago.