- Prior to being given an official reality designation, this universe was known as Earth-TRN654 as part of our Temporary Reality Numbers system.
- Characters from Earth-21673
- Other things related to Earth-21673
- Earth-21673's Appearances
- Earth-21673's Minor Appearances
- Media Earth-21673 was Mentioned in
- Images from Earth-21673
- Reality Gallery: Earth-21673
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