a shrine of some sort in the campus Martius, open to
the sky (Vitr. i. 2
. 5: cum Iovi Fulguri... aedificia sub diuo
), and evidently of early date. Its day of
dedication was 7th October (Fast. Arv. Paul. ad Non. Oct., CIL i'. p. 214,
242, 331; Fast. Ant. ap. NS 1921, 115
; Rosch. ii. 656
; WR 121, 122).