The document summarizes key events in Irish politics and economic development between 1949-1989 under the Lemass government. It describes how Lemass succeeded DeValera as Taoiseach in 1959 and pursued significant economic reforms, moving away from protectionism towards free trade and foreign investment. This led to unprecedented economic growth. Lemass also improved relations with Britain and sought closer European economic ties, though Ireland's initial EEC bid was blocked. The document additionally outlines civil and political changes in Northern Ireland during this period.