When St. Louis Arch was built?
The construction of the St. Louis Arch, also known as the Gateway Arch, began on February 12, 1963, and was completed on October 28, 1965.
That is correct. The construction of the St. Louis Arch started in 1963 and was completed in 1965. It was built as a monument to westward expansion in the United States and has since become an iconic symbol of the city of St. Louis.