Tornadus, Reshiram, Kyurem, Virizion, Terrikion, Colbion, and Landerous.
Event: Victini, Genesect, Keldeo, and Meloetta
White: Zekrom and Thunderous
This or this link, from Psypokes and Serebii respectively, shows the list of the Legendary Pokemon available currently in Pokemon Black/White.
So, basically the Legends obtained are :-
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