Cosmic Treadmill

Verified Timeline

Lore & Background

It was later used in the landmark storyline "The Trial of The Flash" (1983–1984), detailed in *The Flash* #323–350, which concluded with Barry's retirement and moving to the future with Iris. The device is also central to the crossover event *Flashpoint* (2011), where Barry's actions using the treadmill create an alternate timeline, leading to The New 52 reboot. In *Crisis on Infinite Earths* (1985–1986), Barry Allen sacrifices himself to save the Multiverse, an event that involved time travel and the Cosmic Treadmill.

In Their Own Story

In *Flashpoint* (2011), Barry Allen uses the Cosmic Treadmill to travel back in time to prevent the murder of his mother, Nora Allen. This action creates a fractured alternate timeline, forcing Barry to team up with a different version of Batman and a more violent Superman to restore the original timeline. The story explores the consequences of tampering with time and reaffirms Barry's role as the Flash.

Reader's Guide

The Cosmic Treadmill is primarily associated with Barry Allen, the second Flash. It is a tool for time travel, allowing the user to navigate the timestream with precision. The device has been featured in major DC Comics events, including *Crisis on Infinite Earths* (1985–1986), *Flashpoint* (2011), and *DC Rebirth* (2016). Its use often comes with significant consequences, as seen in *Flashpoint*, where Barry's actions lead to a universe-altering crisis.

Did You Know?

• Barry Allen used the Cosmic Treadmill in *Flashpoint* (2011) to create an alternate timeline.
• The device was featured in the storyline 'The Trial of The Flash' (1983–1984).
• Barry Allen's sacrifice in *Crisis on Infinite Earths* (1985–1986) involved the Cosmic Treadmill.