When did you first hear the term "Portal"? Wanna see three?

All this terminology we have in our vocabulary isn't science fiction. They let us know, they have to, and we ignore it or think it's for the future. I show people the video of the holographic F-35s(I have several) and something as small as that blows their mind.
How about some good old dimensional or inner dimensional(I have no idea what is which) portals? Three. Two from one place. One from another. I have more. Security cameras. Time stamped. Two daylight and one nighttime infrared. Yeah, I think I'll show another one or two. Some are pretty freaky.