Lady Sif first appeared in Journey Into Mystery #102 in March 1964.
She would be featured predominantly in the pages of the Mighty Thor beginning with Issue #136.
The warrior goddess Sif is the sister of Heimdall, the sentinel of the Rainbow Bridge.
Jaimie Alexander played Sif in the Thor movies as well as on Marvel’s Agents of S.H.I.E.LD.
Have a terrific Thorsday and tell us who your favorite Asgardian is in the comments below!