From FB:
“Concordia is the Roman Goddess of Harmony. Unlike many other Goddesses Who were deified qualities, Concordia was worshipped from early times in Rome. She especially symbolized peace and agreement between the two classes of Rome, the plebeians or commoners, and the patricians or nobles. In the early days of Rome the two classes had joined to drive out the tyrannical Kings and created a Republic; but it quickly became a Republic of the patricians who had all the wealth and power. The plebeians were barred from the Senate and other governmental and priestly offices, though they of course made up most of the army. In 494 BCE the plebeians had had enough, and, refusing to serve in the army anymore, deserted and camped out on a hill near the Anio River that they called the Mons Sacer, or the Sacred Mountain. The patricians, left defenseless, came to some kind of sense and reforms were instituted giving the plebeians more rights.
To commemorate the compromises worked out between patricians and plebeians, a temple to Concordia was built in the northwestern end of the Roman Forum.
In the later days of the Empire, Concordia was worshipped as the bringer of marital harmony within the imperial family, and as such was called Concordia Augusta. She was depicted as a matronly woman, veiled and heavily draped, holding an olive branch, emblematic of peace, and a cornucopia, to symbolize the abundance that can be achieved when people work together in harmony. She sometimes wore a crown and held a sceptre, caduceus, or patera, a small offering bowl from which libations were poured. She is associated with the stork, which symbolized family devotion to the Romans, and the dove, universally a symbol of peace and gentleness; and sometimes a star, as emblem of hope, is shown near Her. Another attribute of Concordia is the image of two clasped hands, both of which are right hands (like in a handshake), symbolizing two people agreeing.
She was identified with the Goddess Homonoia, the Greek personification of harmony.”