Joseph Dorman for “Sholem Aleichem: Laughing in the Darkness”

For decades, the Allentown Art Museum displayed an oil-on-oak panel painting called “Portrait of a Young Woman” and credited it to “Studio of Rembrandt.”

Before sculpture’s June dedication, Philly is invited to get to know the undersung 19th-century advocate for slavery’s abolition and women’s right to vote.

Taking over the Mann Center in Fairmount Park for the second year in a row, tickets for the Roots Picnic — Philly’s biggest hip-hop party — go on sale Friday at noon.