NCSA HTTPd development stalled. Community patches became the dominant web server for two decades.
Apache HTTP Server is a cross-platform web server that processes HTTP requests and serves web content. It introduced features like virtual hosting, URL rewriting (mod_rewrite), dynamic module loading, and .htaccess per-directory configuration. Its modular architecture made it extensible for everything from PHP processing to reverse proxying.
NCSA HTTPd was the web server that helped build the early World Wide Web. Written by Rob McCool at the National Center for Supercomputing Applications (the same NCSA that gave us Mosaic), it was the most popular web server software by 1994. Then McCool left NCSA in mid-1994, and development ground to a halt. The most important piece of web infrastructure in the world was suddenly unmaintained.
The web didn't wait. System administrators who depended on NCSA HTTPd started writing their own patches—bug fixes, security patches, feature additions—and sharing them via email. In February 1995, eight of these patch-swapping sysadmins decided to formalize their collaboration. Brian Behlendorf, Roy Fielding, Rob Hartill, David Robinson, Cliff Skolnick, Randy Terbush, Robert Thau, and Andrew Wilson formed the Apache Group, coordinating via a private mailing list hosted by HotWired.
Using NCSA HTTPd 1.3 as their base, they merged all the accumulated patches, tested the result, and released Apache 0.6.2 in April 1995. The name's origin became the subject of cheerful mythology: the official story involves the Apache Native American people, but the beloved alternative etymology—'a patchy server,' because it was built from patches—persisted on the project's own FAQ from 1996 to 2001.
Apache's rise was meteoric. By December 1995, version 1.0 was released. Within a year, it had surpassed NCSA HTTPd as the most popular web server on the internet—a position it would hold for nearly two decades. The Apache Group evolved into the Apache Software Foundation in 1999, which went on to become the institutional home for dozens of other open source projects including Hadoop, Kafka, and Spark.
It's arguably the most successful fork in open source history, not because of drama, but because of its absence. Eight pragmatic engineers saw abandoned software that the world needed, picked it up, and changed the internet.
Rob McCool creates NCSA HTTPd at the University of Illinois
Rob McCool leaves NCSA; HTTPd development stalls
Eight developers form the Apache Group, begin coordinating patches via email
Apache 0.6.2 released, first public release based on patched NCSA HTTPd 1.3
Apache 1.0 released
Apache surpasses NCSA HTTPd as the most popular web server
Apache Software Foundation incorporated
Apache becomes first web server to serve more than 100 million websites
Apache HTTP Server was the dominant web server for nearly two decades, powering the majority of the internet at its peak. But the fork's most lasting impact may be institutional: the Apache Software Foundation became the model for how open source projects organize at scale, providing governance, legal protection, and infrastructure for over 350 projects.
Roy Fielding, one of the original eight, went on to define REST (Representational State Transfer) in his doctoral dissertation, partly informed by his work on Apache. The fork didn't just build a web server—it helped shape the architecture of the modern web itself.