Timeline/minus25
This is faux namespace "Timeline" used in Timeline
March: An interdimensional traveler from an alternate earth crash lands a portal traveling vessel in the American Midwest. The traveler dies, the vessel is appropriated by the US government and starts a chain of research. The technology is very similar to Earth tech of the 1990s, but the actual dimensional travelling technology is as-yet undeveloped, and there are examples of equivalent but divergent energy technologies: there is a simple but functional high-capacity fuel cell on board, using mostly Earth accessible designs but with a few exotic components that will take time to reverse engineer.
Some DARPA researchers successfully open unstable portals to nearby subdimensions, but never for very long.
A handful of senior DARPA researchers begin drawing in small amounts of rare metals and isotopes through micro-portals, helping their research to fund itself. The few aware of this practice keep it quiet, building shell accounts that grow into shell companies.