Columbus is getting the once-over from some notable visitors.

More than 400 leaders from 75 cities will gather in Columbus next week for the CEOs for Cities 2016 National Meeting. Hard to say which is more impressive-the attendees or the presenters. The Sept 27-29 program will use Columbus as a backdrop and laboratory for how Ohio's state capital "Opportunity City" is attracting acclaim as a smart, open and resilient city. Over three dozen local leaders are involved with the CEOs for Cities Columbus Cluster.

Columbus is getting the once-over this week from 1,000 women business owners across the country at the national conference of NAWBO. The National Association of Women Business Owners, wrapping up Tuesday at the Hyatt Regency Columbus, is highlighting the increasing role women are playing in boosting the nation's economy: growing their businesses faster and generating more than half of nearly 10 million new small business jobs by 2018. NAWBO says women business owners are also more likely to exercise social responsibility in their communities.

Companies' increasing emphasis on corporate philanthropy has more of them turning for help to Besa and its Besa Promise program to manage and measure community impact. Columbia Gas of Ohio is the latest to sign up.

Other upcoming events worth a look:

"Brexit and Its Global Challenges" will be examined by global economics expert Dan O'Brien at 7 p.m. Monday at Ohio Wesleyan University. The talk is sponsored by OWU's International Studies Program.

A theme of replacing racism with reconciliation will be the focus of civil rights leader, minister and author John Perkins when he speaks at the annual Leadership Prayer Breakfast presented by Rela on Oct. 6 at the Greater Columbus Convention Center.

Good thing Columbus State Community College students, faculty and staff are sprucing up more than 40 social service agencies around town in Tuesday's 4th annual Day of Service. Columbus State President David Harrison created the event to honor the "community" part of the college's name as a 50th anniversary project.