<s>
Open	B-Application
edX	I-Application
is	O
the	O
open-source	B-Application
platform	I-Application
software	O
whose	O
development	O
led	O
to	O
the	O
creation	O
of	O
the	O
edX	B-Application
organization	O
.	O
</s>
<s>
On	O
June	O
1	O
,	O
2013	O
,	O
edX	B-Application
open	O
sourced	O
the	O
platform	O
,	O
naming	O
it	O
Open	B-Application
edX	I-Application
to	O
distinguish	O
it	O
from	O
the	O
organization	O
itself	O
.	O
</s>
<s>
The	O
source	O
code	O
can	O
be	O
found	O
on	O
GitHub	B-Application
.	O
</s>
<s>
The	O
platform	O
was	O
originally	O
developed	O
by	O
Piotr	O
Mitros	O
,	O
as	O
a	O
research	O
project	O
at	O
MIT	O
,	O
with	O
maintenance	O
transferred	O
to	O
edX	B-Application
in	O
2012	O
.	O
</s>
<s>
When	O
edX	B-Application
was	O
acquired	O
in	O
2021	O
by	O
2U	O
,	O
the	O
Open	B-Application
edX	I-Application
team	O
and	O
maintenance	O
were	O
transferred	O
to	O
the	O
Center	B-Application
for	I-Application
Reimagining	I-Application
Learning	I-Application
(	O
tCRIL	O
)	O
,	O
a	O
nonprofit	O
founded	O
by	O
Harvard	O
and	O
MIT	O
with	O
the	O
proceeds	O
from	O
the	O
acquisition	O
.	O
</s>
<s>
Open	B-Application
EdX	I-Application
was	O
designed	O
for	O
the	O
EdX	B-Application
project	O
,	O
which	O
remains	O
the	O
largest	O
global	O
installation	O
as	O
of	O
2022	O
,	O
with	O
over	O
3000	O
courses	O
and	O
500,000	O
regular	O
users	O
.	O
</s>
<s>
The	O
Open	B-Application
EdX	I-Application
community	O
maintains	O
a	O
catalog	O
of	O
other	O
installations	O
,	O
including	O
fully-hosted	O
learning	O
sites	O
open	O
to	O
public	O
courses	O
and	O
350	O
other	O
instances	O
run	O
by	O
organizations	O
of	O
all	O
sizes	O
.	O
</s>
<s>
An	O
Open	B-Application
EdX	I-Application
marketplace	O
also	O
features	O
partners	O
that	O
provide	O
various	O
services	O
to	O
community	O
members	O
running	O
their	O
own	O
instances	O
in	O
multiple	O
languages	O
.	O
</s>
<s>
The	O
Open	B-Application
edX	I-Application
server-side	O
software	O
is	O
based	O
on	O
Python	B-Language
,	O
with	O
Django	B-Language
as	O
the	O
web	B-Application
application	I-Application
framework	I-Application
.	O
</s>
<s>
The	O
community	O
hosts	O
an	O
annual	O
Open	B-Application
edX	I-Application
Conference	O
,	O
which	O
rotates	O
worldwide	O
each	O
year	O
.	O
</s>
