Writing Ionic Formulas A chemical formula is a combination of elemental symbols and subscript numbers that is used to show the composition of a compound.
Here's a timeline of how Wrigley Field (Weeghman Park when it was first built) was constructed, and the various changes that have been made to it over the years. 1914: Opened April 23 as the home of the Federal League Chicago Whales, with a single deck that seated 14,000.
By Al Yellon ï @bleedcubbieblue on Apr 15, 2013, 10:26a 59. Wrigley Field, then known as Weeghman Park, opened 99 years ago and the Cubs moved in two years later. It has changed many times over the years; here's a timeline of all those changes.