I keep seeing 1948 In‑N‑Out credited, but some cite a 1947 stand in Springfield, MO — any historians here know the best answer? I use this trivia in ops training to help franchisees connect our 120‑second total service target back to the origins of speed culture.
I teach it as ‘1947 first window: Red’s Giant Hamburg (Springfield) vs. 1948 first two‑way speaker: In‑N‑Out’ so trainees tie the 120‑second goal to communication time, not just cook time — that’s kept debates down. Small caveat: some credit Jack in the Box (1951) for popularizing the intercom model — want a one‑liner you can drop on your slide?
I lean “it depends”: Red’s (1947) for the window, In‑N‑Out (1948) for two‑way audio, and Jack in the Box (1951) for the intercom‑only model that really pushed speed — history’s a drive‑thru menu, what you pick changes the answer. For training, use a one‑slide timeline with those three dates and a 120‑sec breakdown by touchpoint (“order/speaker, pay, handoff”) and cite one source like https://sandiegohistory.org/collection/biography/peterson-robert-o/; want a one‑pager template?
Red’s Giant Hamburg (’47) for the first pull‑through and In‑N‑Out (’48) for the speaker‑driven workflow feels like the clean split. Then tie your 120‑second target to a simple time budget — about 35s capture/confirm, about 65s cook/assemble, about 20s handoff — and cite https://www.atlasobscura.com/places/reds-giant-hamburg for the “who did it first” note, @foodhistory. If you want a caveat, add that a few mid‑century drive‑ins toyed with car‑window service but didn’t standardize it — freeway vs on‑ramp.
the who‑did‑it first debate drives me nuts: I frame it as a ’47 window in Springfield (Red’s) and a ’48 speaker‑based workflow in Baldwin Park, plus note banks were doing drive‑through lanes by the 1930s to show the speed mindset predated burgers. For your “120 seconds,” run a quick 15‑second “speaker fail” drill so crews feel how a tiny communication delay snowballs at pay/pickup. @lucia_fern84 do you anchor it with one artifact, or show both timelines?