<s>
Glow	B-Language
is	O
an	O
open-source	B-Application
JavaScript	B-Language
library	I-Language
created	O
by	O
the	O
BBC	O
.	O
</s>
<s>
Development	O
on	O
Glow	B-Language
began	O
in	O
2007	O
,	O
and	O
it	O
was	O
publicly	O
released	O
under	O
an	O
Apache	B-Application
License	I-Application
in	O
July	O
2009	O
.	O
</s>
<s>
The	O
rationale	O
for	O
the	O
development	O
of	O
the	O
library	B-Language
,	O
as	O
opposed	O
to	O
using	O
other	O
libraries	O
such	O
as	O
jQuery	B-Language
or	O
YUI	B-Language
,	O
was	O
to	O
meet	O
the	O
BBC	O
's	O
stated	O
targets	O
for	O
cross-browser	O
compatibility	O
(	O
particularly	O
Safari	O
1.3	O
)	O
that	O
are	O
of	O
particular	O
use	O
in	O
creating	O
a	O
website	O
that	O
uses	O
data	O
that	O
corresponds	O
to	O
times	O
,	O
for	O
example	O
broadcast	B-Operating_System
metadata	O
.	O
</s>
