I plan to extend this into a longer post, but for now I want to tell a story.
I have a name that is pretty difficult for English speakers to just "know" the spelling of from the pronounciation.
Recently I started using the Nato alphabet. It really greatly reduces the friction of e.g. communicating to a telecom provider over the phone.
If you, like me, struggle to find words for spelling words, try:
Disclaimer: I made it after struggling way too much with remembering / coming up with the words.
According to Wikipedia, the rough timeline is that there were several standards in use by military and civil aviation in the 1940s and earlier, including separate standards for Latin America and elsewhere, and these used Zebra in the US and UK. The International Air Transport Association presented a draft in1947 to the standards body International Civil Aviation Organization that was meant to rectify this, but it still contained Zebra. Apparently this alphabet wasn't good enough, because the ICAO hired a linguistics professor to create a revised alphabet, and it's this one that first contained Zulu, published in 1951.
There were several subsequent revisions following this, where the words were tested in university laboratories in the US and UK, before the final list was broadly adopted in 1956. Interestingly, according to this document written in 1959, the team that was revising the 1951 list attempted to replace Zulu with Zebra, but found that it didn't help the intelligibility of the alphabet, so Zulu was kept in the final standard.