those are from the Lore mission on ESD. if you actually open your accolade list and look through the lore accolades you can read up on the path to 2409. its REALLY long though, and can take months to collect it all unless your willing to spend money on the exchange for them.
Lore Accolade are Accolades granted to players for collecting Path to 2409 datachips and answering historical trivia questions. These were introduced with Season 5. Datachips are issued randomly so players may receive the same datachip again.