The week ahead in Orange County

Today

Walking tour: An overview of how Old Towne Orange developed in a tour offered by the Orange Community Historical Society. 1 p.m. Suggested donation $5. Tour starts in front of the Chapman Antique Mall, 201 E. Chapman Ave. (714) 998-0330

Media conference: “New Media, Technology and the Humanities,” a conference exploring the revolution in reading and writing inspired by new media, includes a panel on the evolution of new media. Free. UC Irvine, Humanities Instructional Building, Room 135, at Campus Drive and West Peltason Drive. (949) 824-3638

Music lecture: Ethnomusicologist Robert Garfias presents a lecture that examines what music says about the society in which it was created. $7. 1:30 p.m. 2202 N. Main St., Santa Ana. (714) 567-3679

Sunday

Classic twist: The Newport Beach Public Library presents the Classical Edge Trio, featuring violinist Larry Greenfield, pianist Susan Boettger and cellist Alex Zhiroff. Free. 3 p.m. 1000 Avocado Ave. (949) 717-3800

Kid fun: Mission Viejo Library presents “Sing, Clown, Jump Around with Raggedy Ann & Andy” featuring author Patty Hall. 2 to 4 p.m. 100 Civic Center. (949) 830-7100

Monday

Presidents Day: The Richard Nixon Library & Birthplace celebrates Presidents Day with free admission all day and cherry pie for the first 100 visitors. Portrayers of George Washington and Abraham Lincoln will be on hand. 18001 Yorba Linda Blvd., Yorba Linda. (714) 993-5075

Tuesday

Mardi Gras fun: Today is the last day to buy tickets to the Mardi Gras Masquerade Dinner Party hosted by the Norman P. Murray Community and Senior Center. The event takes place Friday from 5 to 8 p.m. and includes authentic New Orleans food, entertainment and door prizes. $10. 24932 Veterans Way, Mission Viejo. (949) 470-3062

Wednesday

Disaster preparedness: Cal State Fullerton’s lecture series begins today with “What We Should All Know About Natural Disasters.” Dennis S. Mileti, a member of the Department of Homeland Security’s National Science Research Center on Terrorism, and former FEMA director James Lee Witt lead the presentation in the Titan Student Union’s Portola Pavilion. Admission, free; parking, $5. 2 to 2:30 p.m. State College Boulevard and Nutwood Avenue.

Tax help: Free income tax assistance for low-income individuals, families and seniors is offered by Volunteer Income Tax Assistance at the Placentia Human Services office. Volunteers have received training from IRS and California Franchise Board professionals. The program is offered through April 12. First-come, first-served. 900 S. Melrose St. (714) 986-2333

Thursday

Irvine celebration: The city celebrates 35 years of incorporation with a reception at the Civic Center. Program includes a presentation of “Inspired by Vision, Planned for Success: a Pictorial History of Irvine’s First 35 Years.” Additional anniversary events have been planned throughout the year. Free. 5:30 to 7:30 p.m. 1 Civic Center Plaza. (949) 724-6657 or www.cityofirvine.org/35th

Prayer breakfast: Erin Runnion, founder of the Joyful Child Foundation in memory of her daughter, Samantha, will be a guest speaker at the annual Mayor’s Breakfast in Garden Grove. $25. 7 a.m. Community Meeting Center, 11300 Stanford Ave. Reservations: (714) 741-5026.

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Source: The Orange County calendar is compiled by Yvonne Villarreal. Submit items two weeks in advance to ocdesk@latimes.com or by fax to (714) 966-7711.