Note 049
They always kept their Easter, like the Jewish Passover,
on the fourteenth day of the first moon after the vernal
equinox; and thus pertinaciously opposed the Roman church
and Nicene synod, which had 'fixed' Easter to a Sunday.
Bingham's Antiquities, 1. xx. c. 5, vol. ii. p. 309, fol.
edit.
The History Of The Decline and Fall
Of The Roman Empire—
Chapter 27