NCSA HTTPd web server first public release. Rob McCool started developing the NCSA HTTPd while he was an undergraduate at the University of Illinois at Urbana–Champaign.
Robert McCool leaves NCSA to join Mosaic Communications Corporation (Netscape). The development of NCSA HTTPd slowed greatly.
A small group of webmasters known as the Apache Group came together with the goal of releasing a common distribution based on multiple "patches" to the NCSA HTTPd Server. Mailing list httpd-dev archive started.
First official public release (0.6.2) of the Apache web server.
Release of Apache httpd 1.0, after a major re-architecture.
Release of Apache httpd 1.3. New features include Dynamic Shared Object support (Apache modules may now be loaded at runtime).
The Apache Software Foundation formally incorporates as a Delaware-based 501(c)(3) non-profit corporation from The Apache Group. Original directors are: Brian Behlendorf (President), Ken Coar (VP Conferences), Roy T. Fielding (Chairman), Ben Hyde (VP Apache HTTP Server Project), Jim Jagielski (Secretary and EVP), Ben Laurie, Sameer Parekh, Randy Terbush (Treasurer), and Dirk-Willem van Gulik.
First European Apachecon in London, organized by the Apache Software Foundation.
Release of Apache httpd 2.0. New features include: higher performance, multiple operational models (threaded, hybrid processes/threads), integrated SSL and WebDAV support, improved HTTP proxy support, and I/O layering and filtering.
Release of Apache httpd 2.2. New features include the Apache Portable Runtime bundled with the tar and zip distributions.
Release of Apache httpd 2.4. New features include: cloud suitability, high-performance, support for async I/O, larger selection of usable MPMs (Event, Simple, etc), reverse proxy improvements, additional load balancing mechanisms.
Apache supports HTTP/2, a major revision of the HTTP network protocol, with key features such as multiplexing, header compression, prioritization and protocol negotiation.