Had the line of technology followed the same path upwards that it did from the late 1700’s to the mid 20th Century, they would also have had aircraft, steamships and other motor vehicles, somewhere around the time of the Vikings................
Maybe it would have, maybe it wouldn’t have. There’s that pesky free will again. The alternative resembles something like “historical inevitability”.
Had the Turd Reich not gone and started a war with nearly everyone they ever met, they’d have orbited a satellite in the 1930s, a man perhaps as early as 1940, might have been on the Moon by the 1950s, and put people on Mars by 1970.
Instead, between 25 and 40 million died, including those mass-murdered in the Holocaust.
Von Braun and most of his team wound up here. An enhanced, unmanned, suborbital V2 took the first photos from space in 1946, and the first crewed lunar mission took place in 1969. The first close-up photos of Mars were taken by Mariner 4 in 1965, with no human missions to date.
https://www.reddit.com/r/spaceporn/comments/c5radh/first_photo_of_earth_taken_from_space_in_1946_vs/
https://www.planetary.org/space-images/mariner-4-image-catalog
https://freerepublic.com/focus/chat/4055749/posts?page=36#36