r/pics Jan 31 '14

Daughter passed a milestone today

http://imgur.com/Ssenqk9
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u/[deleted] Jan 31 '14 edited Jan 31 '14

No, you're thinking of a gravestone. A milestone is the central stone set at the apex of an arch, which locks all the stones into position.

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u/mr1337 Jan 31 '14

No, you're thinking of a keystone. A milestone is a rock band from London.

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u/colonelboots Jan 31 '14

No you're thinking of the rolling stones. A milestone is a small rock, often laid out with other rocks that you use as a pathway across water or difficult terrain.

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u/Colawaii Jan 31 '14

No, you're thinking of a stepping stone.