Arrowverse


 * For the in-universe concept, see multiverse.

An unnamed shared multiverse often referred to as the Arrowverse or CW Multiverse, is a television franchise that is based on characters that appear in publications by DC Comics. The shared multiverse is akin to the DC universe in their comic books, which has had crossover plot elements, settings, and characters.

History
The CW began airing in fall 2012. Due to its success, the network began production for a spin-off the following year. Barry Allen was planned to be introduced in the eighth and ninth episodes of the show's second season, followed by the twentieth episode acting as a backdoor pilot. However, after executives saw the initial episodes, they decided to order the series straight to pilot. In early 2015, the CW announced a web-series for to air on the CW Seed. . Two months later, The CW announced an additional series, to air early 2016. On August 12, 2015, Wendy Mericle confirmed their version of John Constantine follows the same continuity as NBC's. On December 12, 2018, Marc Guggenheim confirmed their version of Barry Allen follows the same continuity as CBS's.