University administrators invite members of the UA community to the second Campus Town Hall meeting, titled "The Role of Diversity in Focused Excellence," at noon in the Bio Sciences West building, Room 208.

J. Homer Thiel presents "Rio Nuevo Archaeology: Mission and Presidio" as part of the Arizona Historical Society Lecture Series at 7 p.m. in the Arizona Historical Society, 949 E. Second St. The cost is $6, $5 for members or $3 for students.

Beyond Tolerance will show "American History X" tonight at 7 in the Martin Luther King building, Room 100. A discussion on racism on campus, facilitated by Beyond Tolerance, will be held after the movie.

The School of Music and Dance presents an ensemble concert featuring the Wind Ensemble/Campus Band at 7:30 p.m. in Crowder Hall.