user20967: I'm doing some bitcoin address collections. If there are some meaningful letters in the address or if the address is created in a meaningful time to me, I will buy it. 
How can I know when the address is created?

user21451: Addresses are not created, per se. They're simply a representation of a public key. So, you cannot know when an address is "created."
However, it is possible to know the first time an address is used.

20967: <p>I'm doing some bitcoin address collections. If there are some meaningful letters in the address or if the address is created in a meaningful time to me, I will buy it. </p>

<p>How can I know when the address is created?</p>
 21451: <p>Addresses are not created, <em>per se</em>. They're simply a representation of a public key. So, you cannot know when an address is "created."</p>

<p>However, it is possible to know the first time an address is <em>used</em>.</p>
