For whatever reason, when reading the weather in the paper this morning, I wondered where the symbols for the planets came from. For example, Mars and Venus are symbolized by the glyphs that are currently used to represent male and female respectively. Neptune is a trident.
Are the majority of these derived from the indentifiers of ancient Roman gods? I note that Pluto is a conjoined PL, I understand in respect for the initials of the planet’s discoverer, Percival Lovell.
This cite is one of many I turned up showing the signs, but I could not readily find any comprehensive explanation of the glyphs themselves.