Hearing will take place on March 21
The measure passed by a 51-19 vote margin
House expected to vote on measure on Thursday
Rhode Island House expected to vote on issue by end of this month
House expected to vote on measure by end of the month
Illinois, Delaware, Rhode Island and New Jersey may follow Maryland, Washington and Maine in legalizing same-sex marriage
Rhode Island, other states expected to debate issue in 2013
Chafee says lesbian candidate's victory would send 'broad message'
Maryland Court of Appeals rules legally married gay couples can divorce in the state.
A growing list of elected officials and celebrities have followed President Obamaās lead and endorsed marriage equality since last week