Final answer:
The United States, Haiti, Greece, Hungary, Poland, and Bulgaria have in common that they all won independence from the British.
Step-by-step explanation:
The United States, Haiti, Greece, Hungary, Poland, and Bulgaria have in common that they all won independence from the British. However, it should be noted that Greece and Hungary did not directly win independence from the British, but they did achieve independence during the same general time period. These countries were all former colonies or territories of the British Empire and gained their independence through various methods, such as wars, revolutions, and negotiations.
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