Building on Openwave's
HDML, Nokia's "Tagged Text Markup Language" (TTML) and Ericsson's proprietary markup language for mobile content, the
WAP Forum created the WML 1.1 standard in 1998.
 WML 2.0 was specified in 2001,
 but has not been widely adopted. It was an attempt at bridging WML and
XHTML Basic before the
WAP 2.0 spec was finalized.
 In the end,
XHTML Mobile Profile became the markup language used in WAP 2.0. The newest WML version in active use is 1.3.
The first company to launch a public WML site was Dutch
mobile phone network operator
Telfort in October 1999 and the first company in the world to launch the
Nokia 7110. The
Telfort WML site was created and developed as side project to test the device's capabilities by a billing engineer called Christopher Bee and National Deployment Manager, Euan McLeod. The WML site consists of four pages in both Dutch and English that contained many grammatical errors in Dutch as the two developers were unaware the WML was configured on the
Nokia 7110 as the home page and neither were native Dutch speakers.