Date of Mint
Deployed beta smart contract at
Dec-10-2017 11:03:35 PM +UTC
https://etherscan.io/tx/0x235dbd737d1ccdb2e4e843ee3891089eeac013c2728e0941802b3800934d9775
Deployed current release version at
Mar-02-2018 12:10:12 AM +UTC
https://etherscan.io/tx/0xbdb8725b8550aab8b8bd0a48c9351e0b56103efe3f7c86d4f8e2bf672dd38f29
Dates of mint
https://docs.google.com/spreadsheets/d/1yAVMhUmmjGCzexDThgu9WzSRaaK6nDG8_i0qXWYSrbw/edit#gid=0
data source: Etherscan