semicentenary

the town celebrated its semicentenary with a grand parade.

many events were organized for the semicentenary anniversary.

the semicentenary of the school was marked by a reunion.

they published a book to commemorate their semicentenary.

the semicentenary celebrations included speeches and performances.

we are planning a special event for our semicentenary.

the museum held an exhibition for its semicentenary.

local artists contributed to the semicentenary festivities.

the semicentenary event attracted many visitors from afar.

they created a documentary to highlight their semicentenary achievements.