Complex sentence: The first World Hijab Day was celebrated in 2013, it was founded by Nazma Khan, this event encourages Muslim, along with non-Muslim women to wear the hijab and experience life as a hijabi woman (i.e. a woman wearing a hijab).
Split into simpler sentences: The first World Hijab Day was celebrated in 2013 and was founded by Nazma Khan. This event encourages Muslim, along with non-Muslim women to wear the hijab and experience life as a hijabi woman (i.e. a woman wearing a hijab).