2030s

Years

The Xindi Civil War ends with the destruction of the Xindi homeworld, Xindus. The Xindi are scattered across the Delphic Expanse in what will someday be known as the Great Diaspora. (ENT: "The Xindi", "The Shipment", "Azati Prime")
The Sphere Builders start to make appearances to the survivors of the Xindi Great Diaspora, providing great help to them, like showing habitable new planets and how to get essential resources. Because of this aid – what will be discovered as a manipulation over a century later – and not telling that they were the actual builders of the spheres, they would be know as "The Guardians" by the Xindi. (ENT: "The Council")
Sometime in the 2030s, a writer from a planet in Orion's Belt writes a classic theme to the words, "Let me help." He recommends those words even over "I love you." (TOS: "The City on the Edge of Forever")
The hovercar started to be used by the general public on Earth. (VOY: "The 37's")