Return value from column A where column B value matches a criteria

I feel like this should be a simple solution that I'm missing, but I have a spreadsheet with string values in column A. In column B, I have timestamps reflecting the last time a corresponding value in A was updated.

i.e.

Alpha 01/01/1900 14:00
Beta 01/01/1900 14:30
Gamma 01/01/1900 14:15
Delta 01/01/1900 14:10

I need to return the most recently updated string value; in this case, Beta. How can this be accomplished without using the ROW function? (I just built a solution using ROW only to find that the application reading the xls as a datasource doesn't support ROW.

I eagerly await your breadcrumbs.

Thanks

Try

=INDEX(A1:A100,MATCH(MAX(B1:B100),B1:B100,0))

Wowee. Instant service, and two home runs.

That was just the ticket!

Thank you and goodnight

You're welcome.