LINUS TORVALDS BUILT GIT IN 10 DAYS - AND NEVER IMAGINED IT WOULD LAST 20 YEARS

Summary from the TLDR Web Dev newsletter

Linus Torvalds created Git in just 10 days after a conflict arose with the proprietary BitKeeper, which Linux had been using. Torvalds initially viewed Git as a potential temporary solution and didn't expect it to become the industry standard. However, Git's decentralized design and efficient synchronization made it more than just a temporary bridge.