Hilbert’s 12th problem asked for novel analogues of the roots of unity, the building blocks for certain number systems. Now, over 100 years later, two mathematicians have produced them.

TROY, N.Y. — Unity House returned to its roots last week with a ribbon cutting for a new building on its original site. The Unity House Crisis Residence is located at 309 8th St., the site where ...

What's That Building? Unity Church Unity Chicago took over the former tennis club in 1989, but its dwindling congregation recently voted to sell the land for $7.5 million.