<s>
CL-HTTP	B-Protocol
is	O
a	O
web	B-Application
server	I-Application
,	O
client	B-Application
and	O
proxy	B-Application
written	O
in	O
Common	B-Language
Lisp	I-Language
.	O
</s>
<s>
It	O
is	O
based	O
on	O
its	O
own	O
web	B-Application
application	I-Application
framework	I-Application
.	O
</s>
<s>
It	O
was	O
written	O
by	O
John	O
C	O
.	O
Mallery	O
"	O
in	O
about	O
10	O
days	O
"	O
starting	O
in	O
1994	O
on	O
a	O
Symbolics	O
Lisp	B-Operating_System
Machine	I-Operating_System
.	O
</s>
<s>
In	O
the	O
same	O
year	O
a	O
port	O
to	O
Macintosh	B-Language
Common	I-Language
Lisp	I-Language
was	O
done	O
.	O
</s>
<s>
In	O
1996	O
CL-HTTP	B-Protocol
became	O
the	O
first	O
web	B-Application
server	I-Application
to	O
support	O
the	O
HTTP	B-Protocol
1.1	I-Protocol
protocol	O
.	O
</s>
<s>
It	O
runs	O
on	O
Unix	B-Application
,	O
Linux	B-Application
,	O
BSD	B-Operating_System
variants	I-Operating_System
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Solaris	B-Application
,	O
Symbolics	B-Application
Genera	I-Application
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
CL-HTTP	B-Protocol
makes	O
extensive	O
use	O
of	O
the	O
Common	B-Application
Lisp	I-Application
Object	I-Application
System	I-Application
and	O
the	O
macro	O
capabilities	O
of	O
Lisp	O
.	O
</s>
<s>
CL-HTTP	B-Protocol
has	O
been	O
used	O
in	O
several	O
applications	O
.	O
</s>
<s>
ELM-ART	O
is	O
a	O
tutoring	O
system	O
written	O
in	O
Common	B-Language
Lisp	I-Language
using	O
CL-HTTP	B-Protocol
.	O
</s>
<s>
InterBook	O
is	O
an	O
early	O
adaptive	O
electronic	O
textbook	O
,	O
also	O
written	O
on	O
top	O
of	O
CL-HTTP	B-Protocol
.	O
</s>
<s>
Cl-HTTP	B-Protocol
has	O
been	O
used	O
very	O
early	O
as	O
a	O
tool	O
to	O
create	O
web	O
interfaces	O
for	O
applications	O
.	O
</s>
<s>
In	O
1994	O
,	O
CL-HTTP	B-Protocol
was	O
used	O
by	O
the	O
W3C	O
and	O
other	O
members	O
of	O
the	O
IETF	O
HTTP	B-Protocol
working	O
group	O
to	O
develop	O
reference	O
clients	O
and	O
servers	O
for	O
HTTP	B-Protocol
1.1	I-Protocol
.	O
</s>
<s>
Most	O
prominently	O
,	O
CL-HTTP	B-Protocol
was	O
used	O
during	O
the	O
presidency	O
of	O
Bill	O
Clinton	O
as	O
the	O
web	B-Application
server	I-Application
for	O
the	O
White	O
House	O
Publications	O
web	O
site	O
.	O
</s>
<s>
CL-HTTP	B-Protocol
has	O
been	O
used	O
as	O
an	O
example	O
of	O
a	O
non-trivial	O
Lisp	O
application	O
.	O
</s>
