A challenge for you.
I like to count rocket systems, rather than capsules. For example the Mercury capsule was boosted by two rocket systems: Redstone and Atlas. The apollo capsule was flown to space by two rocket systems: Saturn 1b and Saturn V.
My claim: in the 1960s, humans were flown to space by TEN separate rocket systems. Can you name them in chronological order? How many of these were American?
Another claim: from 1970 to today, only THREE new rocket systems flew humans to space. Name them.
Everyone I have asked have failed to correctly answer the claims. I have asked Space Historians, two NASA administrators, audience of 1500 NASA employees at Goddard and many others.
Can you be the first? Not fair to use Google..... Oops, you cannot count the LM upper stage, since you already failed that test in your published article.
Burt