The first bitcoin wallet software was Bitcoin-QT, which was a Bitcoin client as well. You can still download and run the very first binaries:
https://bitcointalk.org/index.php?topic=68121.0. In 2011,
MultiBit was launched, which was very popular at that time. Then,
Electrum which probably one of the most used. Later, in 2012,
Armory.
You should move this to the Wallet Software board.
Looking for a wallet with 12 words type around 2011
Bitcoin qt is not working with seeds i think in that time. i dont think its multibit also. All of my attentions re on electrum somehow. ecsda.electrum i also remember with a black page. What am i doing wrong