Which is true of the nuclear threat today?
A. Every country has signed the United Nations' Non-Proliferation Treaty
B. At least nine countries have atomic bombs
C. The U. S and Russia continue to increase their stockpiles of nuclear bombs
D. All of the above

The founder of the byzantine  empire  and its first  emperor,  constantine  the great,  movedthe  capital of the roman empire  to the city of byzantium in 330 ce, and renamed it  constantinople.  constantine  the great also legalized christianity, which had previously been persecuted in the  roman empire.