Misc: What month do we celebrate Commonwealth Day in?

Questions

In 1826 Giuseppe Piazzi, discoverer of first---------- , dies. ?

In 1844 Rev. William Archibald---------- , invented 'spoonerisms' (ie When you get you bords wackwards and you can't palk troperly.), born. ?

In 1849 Emma---------- , whose poem was inscribed on the Statue of Liberty, born. ?

In 1887 Gustav---------- , German quantum physicist (Nobel 1925), born. ?

In 1890 Rose---------- , Mother of a President, an Attorney General, and a Senator, born. ?