SAN DIEGO–Cygnet and the San Diego Black Theatre Collective – including Common Ground Theatre, the Ira Aldridge Repertory Players, the San Diego Black Ensemble and the Vagabond Theatre Project – are uniting to cross market their separate productions and encourage San Diego audiences to see a variety of powerful works written by African American playwrights throughout Black History Month. The San Diego Black Theatre Collective’s On the Horizon Series begins at 7 p.m. on Mondays at the Lyceum Underground Theatre, 79 Horton Plaza, San Diego. through February 22. The “encore” Tuesday readings begin next week at Cygnet’s Old Town Theatre and run through Feb. 23. For more information, call the San Diego Black Theatre Collective at (619) 263-7911. Reservations can also be made through the Cygnet box office at (619) 337-1525. Tickets can be purchased by visiting Cygnet’s website at www.cygnettheatre.com or calling the box office at (619) 337-1525. Tickets can also be purchased in person by visiting the box office at 4040 Twiggs St. in the Old Town Historic Park.