Complex sentence: Baird & Warner celebrated its 150th anniversary on March 28,2005, and on January 31,2005, Chicago Mayor Richard M. Daley issued a proclamation that March 28 would be known as Baird & Warner Day in Chicago.
Split into simpler sentences: Baird & Warner celebrated its 150th anniversary on March 28,2005. On the 31st of January, 2005, Chicago Mayor Richard M. Daley issued a proclamation that March 28 would be known as Baird & Warner Day in Chicago.