Militaristic city-state allies gifting unique units

I had a game where I was gifted a Legion by a city state. Rome wasn't even in the game.
Has this happened to anyone else?
Best Answer
Every militant city state has access to one (and only one) of the unique units available to other full Civs. If you are eligible to receive units from a city-state and your technology gained is at the point that would give you access to that unit, you'll get that unique unit when they gift to you.
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Can you gift a unit to a City-State Civ 6?
You can only gift units they want which are usually not the ones you still have and are old.How often do City-States Gift great people?
Mercantile City-States give +2 Happiness in the Ancient and Classical Era, whether you are Friends or Allies. This bonus increases to +3 in the Medieval Era and beyond. Friends to a Militaristic City-State will get a Free Unit on average, every 20 Turns. Allies get them every 17 Turns.How do you ally with a City-State?
Favor Friendly allies to save money. Do Quests offered by the city-state. Liberate a conquered city-state....How do you increase influence with City-States in Civ 5?
However, kindness, such as gifting units or gold to City-States, completing missions they make, or planting spies in their city, will end up in you gaining influence points. There are five stances a civilization can have with a City-State (in order from worst to best): Permanent War, Angry, Neutral, Friends, or Allies.Deadly attack highlights dangers for U.S. military in Afghanistan
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Answer 2
Open a militaristic city-state's information window and mouse over the words "Trait: Militaristic" to view a tooltip indicating which special unit the city-state will gift to an Ally who has researched a specified prerequisite technology.
Recall that a city-state may have any number of Friends, but only one Ally at a time. Militaristic city-states gift units more frequently to Allies than to Friends, and will only gift their special unit to their Ally. If the Ally hasn't researched the technology required to receive the special unit, a basic unit will be gifted instead.
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