“They all decreed by public vote never to let this day go unobserved, but to celebrate the thirteenth day of the twelfth month, which is called Adar in the Syrian language, the day before Mordecai’s day.”
Here like in 1 Maccabees, chapter 7, they will keep this day as a memorial, the day before Mordecai’s Day, the 13th of Adar, as the celebration of this event. However, here it is a public vote. So that Purim is then connected to this event with a clear reference to the Book of Esther, chapter 9, with the mention of Mordecai.
“The people of Joppa did an ungodly deed. They invited the Jews who lived among them to embark, with their wives and children, on boats that they had provided, as though there were no ill will towards the Jews. This was done by public vote of the city. When they accepted, because they wished to live peaceably and suspected nothing, the people of Joppa took them out to sea. They then drowned them, at least two hundred.”
This is a strange incident. Joppa was an ancient seaport on the Mediterranean seacoast, about thirty miles south of Caesarea and thirty-five miles north-west of Jerusalem, being the principal port of Judea. It was mentioned in 1 Maccabees, chapters 11-14, where Simon, Judas’ brother, was active. It had been part of the original territory of Dan. However, it is not clear who these inhabitants were. However, they somehow voted to drown all the Jewish people living there. Nevertheless, there were only a couple of hundred Jews, and that included their families.