January 16
Concordia
To the ancient Romans, the Goddess Concordia was the personification of concord (an agreement between members of the state or between members of groups within a guild) and sometimes associated with the Greek Goddess Homonoia—the incarnation of harmony.
On this day considered to be the center-post of the first month of the new year, Concordia was petitioned to help with the formation of favorable partnerships with business as well as with love and friendship.