Conversation so far:
who is paying for the little caesars arena
About 62 percent, or nearly $539 million of the Little Caesars Arena project is from private financing and the rest, $324 million overall, is government financed.
when did construction for little caesars arena begin
Construction of Little Caesars Arena began on April 24, 2015
who designed little caesars arena
Little Caesars Arena was designed by HOK.

Question: when did the arena open
Self-contained rewrite: when did little caesars arena open