The Joomla! CMS has a couple of places from which you can download the latest CMS versions. Below is a list of locations where you can find Joomla.
Joomla! Downloads Portal
If you would like to download the files already built into an easy zip file format you can download them directly from downloads.joomla.org. On this portal, you’ll find the most recent release of the Current stable version and all the Legacy versions. If you wish to browse specific packages, including every release since 1.0, you can do so by visiting the Downloads section.
Joomla CMS is a free and open-source Content Management System (CMS) for publishing web content, which helps in building powerful, versatile, dynamic websites and applications. It was officially launched in Aug 2005, with version 1.0, and it has gained massive success with 110+ million downloads so far. There is no other way because of all the things that are hardcoded in Joomla and date back to Joomla 1.5 or even 1.0. V.1.0.2 Latest Apr 25, 2020 + 2 releases.
Alternatively if you are interested in looking at the files before you download or would rather review and download direct you can do so from the Joomla! GitHub repository. In the repository you can use the tags feature to select the version of the code you wish to download.
Note: Nightly builds
Joomla 1.5 Template
Nightly builds are available from https://developer.joomla.org/nightly-builds.html and can be used to test both new installs and updates from previous releases. These packages should not be used in production environments.