Question: Where did the tradition of the christmas tree originate?
Disambiguated questions and answers: question: Where did the custom of the Christmas tree develop?
Where did the tradition of the modern Christmas tree originate?
From what person did the tradition of the Christmas tree originate?
answer: Estonia and Latvia
Medieval Livonia
Early moodern Germany
Martin Luther
Natural Questions answer: early modern Germany
Livonia (from the Wikipedia article "Christmas tree")