It's the #DayOfZeus / Jupiter's Day / Thorsday!
"Often when I have prayed to you, #Zeus, have you granted me the welcome gift of fair weather till the end of my voyage. Give it me on this voyage, too: save me and bear me to the haven where toil ends."
Anthologia Graeca, Epigram 9.9
Intaglio, Graeco-Roman, 30 BCE - 200 CE