In use since 1867, the Legislature’s Mace was completely refurbished in 2009 with the addition of 2 diamonds from northern Ontario – a gift of the Debeers Canada company to the people of the province. One polished stone and one rough stone were installed in its crown.

Three Japanese flowering cherry trees bloom each spring on the Legislature’s grounds – a gift of the Japanese Consulate in Toronto in 2005. 

During the summer of 2016, panels of the centre ceiling in the Legislative Chamber were removed to reveal more of the original mural painted by artist Gustav Hahn (1866-1962) in the Art Nouveau style.

Gathering Place, a collection of Ontario Indigenous art, was installed in two committee rooms at the Ontario Legislature in 2016.

Unveiled at the Legislative Building in 2013, the Remarkable Assembly exhibit showcases women who have played important roles at Ontario's Legislature f

The Legislature adopted the White Trillium (Trillium grandiflorum) as Ontario’s official flower in 1937.

An MPP representing the riding of Prescott in eastern Ontario from 1886-1904, François-Eugène-Alfred-Évanturel served as Ontario’s first Francophone Speaker (1897-1902) and Minister (1904-1905).

Although other locations at Newark (now Niagara-on-the-Lake) were used for meetings of Upper Canada’s Legislature, Navy Hall – one of a set of military structures on the banks of the Niagara River - is considered the principle site in town where much of the activity of the new colonial government

In October 1951, Princess Elizabeth – just months away from becoming Queen – visited Ontario’s Legislature for the first time with her husband Prince Philip. As Queen, she has paid 3 official visits to Queen’s Park - in 1973, 1984 & 2010. 

As part of the 200th anniversary commemoration of Ontario’s Legislative Assembly, the Legislature adopted its own unique Coat of Arms – the first provincial Legislature in Canada to do so.