1) No surprises there. Atheist governments may need to rethink their beliefs.
2) No, I hadn't heard of that! And Perkunas, too -- translate that as Perun, Thor, Thunor, and (just possibly) Bran, and you've got a very ancient and widespread deity. (I tend to think of Bran and Beli, the archaic pair of quarreling deities from Celtic antiquity, as cognates of Perun and Velezh, who had the same role among the Slavs.)
Re: China
2) No, I hadn't heard of that! And Perkunas, too -- translate that as Perun, Thor, Thunor, and (just possibly) Bran, and you've got a very ancient and widespread deity. (I tend to think of Bran and Beli, the archaic pair of quarreling deities from Celtic antiquity, as cognates of Perun and Velezh, who had the same role among the Slavs.)