A group of metro Detroiters are trying to expand Thursday's National Day of Prayer into a broad celebration of the nation's diversity. A Conference titled "When Strangers Become Neighbors" will be presented at Wayne State Thursday, 8 a.m. till noon, to mark the 20th anniversary of these diversity gatherings in metro Detroit. Following the conference, participants will pray inside the McGregor Memorial Conference Center or outside in Gullen Mall. The WSU conference will likely be the largest interfaith event going on in southeast Michigan.