I want to know the answer to the following question:
When did the western half of the state become Hesse?
All the background I'm provided with is that "With the division of the house of Wettin in 1485, Thuringia went to the senior Ernestine branch of the family, which subsequently subdivided the area into a number of smaller states, according to the Saxon tradition of dividing inheritance amongst male heirs.". Is that enough to answer the question?
Answer: no