Complex sentence: This enabled her to make, in June 2000, a donation of $40 million CAD to the Hamilton Community Foundation to be used largely in improvement of Hamilton-area health facilities, an act that represented one of the single largest charitable donations in Canadian history.
Split into simpler sentences: This enabled her to make, in June 2000, a donation of $40 million CAD to the Hamilton Community Foundation, to be used largely in improvement of Hamilton-area health facilities. This act represented one of the single largest charitable donations in Canadian history.