MediaWiki's default skin is called Vector. Vector was introduced in
the 1.16 release (2010) and has been set as the default in MediaWiki since
-the 1.17 release (2011). This replaces the popular skin, Monobook which
-had been been the default since MediaWiki 1.3 (2004). It is now the
+the 1.17 release (2011). This replaced the popular skin, Monobook which
+had been been the default since MediaWiki 1.3 (2004). Vector is now the
default skin on Wikimedia Projects.
There are three legacy skins which were introduced before MediaWiki 1.3: