{"podcast":{"title":"HistoryPod","slug":"historypod-544969","podcast_index_feed_id":544969,"rss_url":"http://feeds.feedburner.com/historypod","website_url":"https://www.historypod.net/","image_url":"https://www.historypod.net/wp-content/uploads/2018/04/cropped-3rd-year-logo-v2-32x32.png","author":"HistoryPod","episode_count":245,"summary":"The daily history podcast","last_synced_at":"2026-07-23T12:18:28.621131+00:00","page_url":"https://stenobird.com/podcast/historypod-544969"},"episode":{"title":"3rd July 1938: World speed record for steam locomotives set by Number 4468 Mallard at just under 126mph","slug":"3rd-july-1938-world-speed-record-for-steam-locomotives-set-by-number-4468-mallard-at-just-under-126mph","published_at":"2026-07-03T02:05:48+00:00","page_url":"https://stenobird.com/podcast/historypod-544969/3rd-july-1938-world-speed-record-for-steam-locomotives-set-by-number-4468-mallard-at-just-under-126mph","show_page_url":"https://stenobird.com/podcast/historypod-544969","url":"https://www.historypod.net/07/03/3rd-july-1938-world-speed-record-for-steam-locomotives-set-by-number-4468-mallard-at-just-under-126mph/","audio_url":"https://dts.podtrac.com/redirect.mp3/www.historypod.net/wp-content/uploads/2022/05/07-03-Mallard-sets-the-world-speed-record-for-steam-locomotives.mp3","summary":"Mallard set the record of 125.88mph on a stretch of slightly downhill railway track at Stoke Band, south of the town of ...","meta_description":"Mallard set the record of 125.88mph on a stretch of slightly downhill railway track at Stoke Band, south of the town of ...","key_points":[],"chapters":[],"topics":[],"duration_seconds":null,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/historypod-544969/episodes/3rd-july-1938-world-speed-record-for-steam-locomotives-set-by-number-4468-mallard-at-just-under-126mph/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/historypod-544969/3rd-july-1938-world-speed-record-for-steam-locomotives-set-by-number-4468-mallard-at-just-under-126mph.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}