| YEAR | DATE | EVENT | LOCATION | NOTES |
|---|---|---|---|---|
| 1910 | 02/10/1910 | Boy Scouts of America is Founded | Chicago, IL | |
| 1915 | 07/16/1915 | Order of the Arrow is Founded | Treasure Island, PA | Initially the organization is called the W.W.W. |
| 1922 | ?? | OA becomes official BSA experiment | n/a | The Order becomes an official program experiment of the BSA |
| 1924 | ?? | Name changed from WWW to OA | n/a | Name changed from Wimachtendienk W.W. to Order or the Arrow |
| 1934 | 06/02/1934 | OA approved as part of BSA | n/a | Order of the Arrow is approved as part of the National Scouting program |
| 1944 | 06/01/1944 | Swegedaigea Lodge Established | Silverado Council | Legacy Lodge |
| 1944 | 11/29/1944 | Royaneh Lodge Established | San Francisco Council | Legacy Lodge |
| 1947 | 07/01/1947 | Machek N'Gult Lodge Established | Oakland Area Council | Legacy Lodge |
| 1947 | ?? | Kaweah Lodge Established | Alameda Council | Legacy Lodge |
| 1948 | 08/23/1948 | OA becomes official program of BSA | n/a | n/a |
| 1952 | 01/23/1952 | Oo Yum Buli Lodge Established | Mt Diablo Council | Legacy Lodge |
| 1965 | 01/01/1965 | Achewon Nimat Lodge Established | San Francisco Bay Area Council | Formed by Royaneh & Machek N'Gult merger |
| 1993 | ?? | Ut-in Selica Lodge Established | Mt Diablo Silverado Council | Formed by Oo Yum Buli & Swegedaigea merger |
| 2020 | 04/27/2020 | Councils vote to merge | n/a | Council vote to merge, so to will the Order of the Arrow lodges |
| 2020 | 06/01/2020 | GGAC Council Officially begins | n/a | Official date of Council Merger |
| 2020 | 09/01/2020 | Merger Task Force Established | Online via Zoom | 3 Youth/2 adults from each lodge |
| 2020 | 12/16/2020 | Yerba Buena Name Announced | GGAC Board Mtg | GGAC Board Mtg |
| 2021 | 01/01/2021 | Yerba Buena Lodge Established | n/a | Formed by Achewon Nimat, Kaweah & Ut-in Selica Merger |
| 2021 | 01/16/2021 | Winter Camp Awareness | Online via Zoom | Not technically YB event |
| 2021 | 01/23/2021 | Lodge Convention | Online via Zoom | Adi elected 1st Lodge chief |
| 2021 | 05/21/2021 | Vigil Overnight | Rancho Los Mochos | 13 legacy members took their vigil (3-OA282, 4-OA379, 6-OA58) |
| 2021 | 06/01/2021 | Founders Flap is issued | Online Trading Post | Founders Flaps available online from 05/01 until 11/31/21 |
| 2021 | 07/01/2021 | Legacy Trading Post item Sale begins | Online Trading Post | Legacy Lodge items available from 07/01 to 08/31 |
| 2021 | 07/03/2021 | Vigil Overnight | Wente Scout Reservation | 1 legacy member took his vigil (1-OA282) |
| 2021 | 08/15/2021 | Yerbafest / BBQ | Camp Herms | 85 members were in attendance, Red Flaps available for first time |
| 2021 | 09/10/2021 | W3S / W3N Conclave | Coast Guard Island | 64 in attendance |
| 2021 | 09/25/2021 | Lodge Induction | Camp Herms | 78 members took their induction |
| 2021 | 12/03/2021 | Lodge Elections | Online via Zoom | Adults not allowed to attendm, Chase VanDerveer elected chief |
| 2021 | 12/04/2021 | Lodge Dinner | Alameda Elks Lodge | New officers sworn in at dinner, Lodge NC available for first time, Vigil tapout |
| 2022 | 01/01/2022 | Second year of YB begins | n/a | n/a |
| 2022 | 01/15/2022 | Winter Camp Awareness (Canceled) | USS Hornet (Canceled) | 50th Winter Camp Awareness (Legacy Achewon Nimat) |
| 2022 | 01/17/2022 | Wekemnayon Issues Village Flap | Village Meeting | |
| 2022 | 03/05/2022 | Polestar Training | n/a | |
| 2022 | 03/19/2022 | Lodge Induction | Camp Herms | |
| 2022 | 04/02/2022 | Leadership Dev | Faith Lutheran Church | |
| 2022 | 04/30/2022 | Vigil Induction | Rancho Los Mochos | |
| 2022 | 06/03/2022 | Trade-O-Ree | Camp Herms | |
| 2022 | 06/04/2022 | Fages II Hike | Wildcat Canyon | |
| 2022 | 07/25/2022 | National Order of Arrow Conference | UO Tennessee | 36 Attendees (25 Delegates, 4 Virtual, 7 Staff) |
| 2022 | 08/14/2022 | Yerbafest / BBQ | Rancho Los Mochos | |
| 2022 | 09/17/2022 | Section G17N Conclave | Camp Lassen | 55 Arrowmen from YB Attend |
| 2022 | 10/15/2022 | Lodge & Vigil Induction | Camp Royaneh | |
| 2022 | 12/03/2022 | Lodge Dinner | Alameda Elks Lodge | New officers sworn in at dinner, Vigil tapout, 143 attendance |
| 2023 | 01/14/2023 | Winter Camp Awareness | USS Hornet | 51st Winter Camp Awareness |
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Order of the Arrow
