Twenty of the nearly 70 fires over the two-year span remain unsolved.

As an adult, she wrote her first book in a two-year span.

I did that, albeit with some of the usual uncomfortable symptoms over a two-year span.

The world ranking formula judges players over a two-year span, based on performance and strength of field.

A runner's three best performances in that two-year span will count.

More than 2,000 citizens were involved in the project over its two-year span.

During the two-year span, Vissel has had five different head coaches.

As a result, Charlotte's two-year span of hosting the game was pushed back to 2010.

He earned a further five international caps in a two-year span.

Real federal government revenues fell in both 1982 and 1983, by almost 10 percent over that two-year span.