Wiktionary.org defines sesquicentenary as:
A 150 year anniversary
English Etymology
sesqui- (“‘one and a half’”) + centenary (“‘100 year anniversary’”)
Noun Singular = sesquicentenary
Plural = sesquicentenaries
In 2010 the Boroondara Libraries celebrate 150 years of public library service in the municipality.
The first public libraries in Boroondara opened in 1860 in Hawthorn & Kew.
To celebrate the anniversary we will be running a range of activities over the coming year.
Stay tuned for details.
