In 1921, on the retirement of H. C. K. Plummer, Trinity ceased to fund the professorship and the Observatory at Dunsink, but in 1947 the Dublin Institute for Advanced Studies took over the Observatory.
Trinity ceased to fund the professorship at Dunsink. This was on the retirement of H. C. K. Plummer. This was in 1921. Trinity ceased to fund the Observatory at Dunsink. This was on the retirement of H. C. K. Plummer. This was in 1921. The Dublin Institute for Advanced Studies took over the Observatory. This was in 1947. This was in 1921.