Garum was such a staple that there are ruins of enormous garum factories in Roman territories around the Mediterranean. It was a massive industry. Historically, it wasn't just fish guts but whole small fish, and they also added herbs. What I find interesting is that similar fish sauces are found …

Incitatus' appointments were likely exaggerated by Suetonius and other contemporary writers, who weren't exactly fans of Caligula. The horse probably was treated lavishly – had his own house and servants – but the idea of him actually being a senator or consul might just be political satire of the time. …