The $1.00 December 2021 CD special research rewards an Elite Fast TM and Elite Charged TM (from Serebii) : r/TheSilphRoad
New Year's 2022 Field Research and Event Summary (LeekDuck) : r/TheSilphRoad
Coming in November: Festival of Lights and more! – Pokémon GO
Pokemon GO December 2022: All Field Research tasks and rewards
Pokemon GO December 2021 Field Research Breakthrough Reward Revealed
December Research Breakthrough New Information : r/TheSilphRoad
Research Breakthrough Box December 2022 Pokemon Go | Shiny Galarian Mr Mime Pokemon Go Research - YouTube
Pokemon GO December 2022: All Field Research tasks and rewards
Deino is the December 2021 Research Breakthrough in Pokémon GO
What's March 2023's Pokémon GO Research Breakthrough? - Nintendo Wire
What's April 2022's Pokémon GO Research Breakthrough? - Nintendo Wire
January 2022 Research Breakthrough Box - Pokemon-GO.Name
December Community Day 2021 | Pokémon GO Hub
December Community Day 2021 | Pokémon GO Hub
Pokemon Go December Community Day 2020 Special Research
December 2022 Field Research Megathread : r/TheSilphRoad
Starmie will be available in Pokémon GO Research Breakthrough encounters with a 1x Star Piece reward from November 1 to December 1 | Pokémon Blog
December 2022 Community Day: Previously featured Pokémon from 2022 and 2021 Community Days return! – Pokémon GO
Pokemon Go: December field research tasks rewards and encounters – full list - Dexerto
December Community Day “An Exclusive Research Story” Infographic (LeekDuck) : r/TheSilphRoad
