Which is earlier, the Tao Te Ching or the Book of Changes?

The Book of Changes was written very early, before the Spring and Autumn Period. Tao Te Ching is a philosophical work of Laozi (Li Er) in the Spring and Autumn Period, also known as the moral truth, with five thousand words and five thousand articles by Laozi. It was a work of China before the separation of the pre-Qin philosophers in ancient times. It was highly praised by the philosophers at that time and was an important source of Taoist philosophy. Moreover, the Book of Changes is known as the source of ten thousand classics, and many words in Tao Te Ching are from the Book of Changes.