Answer:
The First People were "rediscovered" by Fringe Division. As part of a ploy from the Alternate Universe, Fauxlivia hired a shapeshifter to piggyback a signal that would cause amnesia to the Number Station signals originated by the First People. This incident caught the attention of Fringe Division. Their investigation led them to the First People, and consequently the pieces of the Machine. With this discovery, Phase One of Walternate's plan had reached fruition. ("6955 kHz")
The First People were "rediscovered" by Fringe Division. As part of a ploy from the Alternate Universe, Fauxlivia hired a shapeshifter to piggyback a signal that would cause amnesia to the Number Station signals originated by the First People. This incident caught the attention of Fringe Division. Their investigation led them to the First People, and consequently the pieces of the Machine. With this discovery, Phase One of Walternate's plan had reached fruition. ("6955 kHz")
Step-by-step explanation: