Kyria Shaquilat, thanks! I'll relate a few things here. It would be great to see what others can add roleplay and otherwise in honor of the occasion. Of course, the celebration evolved over time.

September First is the beginning of the Byzantine New Year and of the Indiction (a cycle of 15 years which began in 312 under Constantine the Great). To honor the Founder, a festival was held each year at this time at the Column of Constantine, which that Emperor set up with such fanfare back in May 330. You may recall from John Romer's "Byzantium: Lost Empire" documentary, how pagan and Christian priests brought great relics to bury at the foot of the column--the axe of Noah, the bread of the Feeding of the 5,000 to name two. Of course, the statue of the pagan god Phoebus was afixed to the top--now adorned with Constantine's head!

The Day was special also to Syria. It is the Feast Day of St. Simon Stylite. Yep, that's the saint who lived on the top of the column. Again, you might remember John Romer's visit to the magnificent church built in his honor.

A Day of wonder in Armenia too. It was there that an icon of the Theotokos, the Mother of God, was honored especially after it had been thrown into the river, during the Iconoclast Controversy, and recovered several years later. The icon was then transferred to the monastery of Miasenes near Melitene, Armenia, where it remains today.

September First seems to be a little treasurehouse of the long history of Byzantium. Perhaps, we 'Byzantines' at Ancient World could stand at the Porphyry Column of Constantine and sing the Emperor-Saint's Troparion: "O Lord, your disciple, Emperor Constantine, who saw in the sky the Sign of Your Cross, accepted the call that came straight from You as it happened to Paul, and not from any man. He built his capital and entrusted it to your care. Preserve our country in everlasting peace, through the intercession of the Mother of God, for You alone are the Lover of Mankind."

source: Byzantine Daily Worship by Most Reverend Joseph Raya and Baron Jose De Vinck, p. 429.