On the Flash last year Gideon says that Barry invented Gideon.
I assumed that the Time Travelers were using the oldest "usable" tech they could find while visiting the deep past... Not that Barry has a house in the future and invents stuff contributing to science, which seems to be closer to the truth from the information now available.
I assumed that the Time Travelers were using the oldest "usable" tech they could find while visiting the deep past... Not that Barry has a house in the future and invents stuff contributing to science, which seems to be closer to the truth from the information now available.