Why did developers come up with a structure like Git?

Git was created for efficient version control of source code in a distributed environment. The main reasons for the emergence of Git:

• Distributed: each developer has a complete copy of the repository, allowing offline work and reducing dependence on a central server.
• High speed: version operations are performed locally, which speeds up work.
• Reliability: thanks to hashing and data structure, the integrity of the history is ensured.
• Support for branching and merging: convenient creation and merging of branches for parallel development.

Thus, Git solves problems of team coordination and change control in code.