also holds gold medal debates for every academic year giving the students the opportunity to win the medal on prize day if they win the debate. The gold medal debates are used in sixth year to select an eligible Valedictorian for the year, who give his address at both the graduation mass and again at prize day. Former winners of the senior gold medal debates include the Taoiseach Liam Cosgrave, the Supreme Court Justice Anthony J. Hederman, Conor Gearty and Oisín Quinn. The college debaters participate in many competitions including the L&H debates in UCD. Castleknock Chronicle The Castleknock Chronicle has been published every year since 1886 by the College Union; it is a record of the main events in the college, and a valuable historical source. It records the students in each year group and the members of every team and society in the college. In has photographs and articles written by staff and students about events in the college. The Chronicle also holds the distinction of being the publisher of the last-known photograph of the RMS Titanic. it was being digitised. Grounds There are two hills in the grounds: the Windmill Hill and the hill of the castle. The former is reputed to be the burial mound of Cumhal, father of Fionn mac Cumhaill, a legendary Irish warrior. According to legend, mac Cumhaill was interred here following his death at the Battle of Cnucha. An archaeological dig of this hill carried out in June 2007 revealed the remains of four human skeletons probably dating from the early Christian period. The second hill is topped with the remains of Castleknock Castle which dates from the early thirteenth century, when it was founded by the Norman knight Hugh Tyrrell, who was later created Baron of Castleknock. He chose this location near the end of the esker which stretches from Galway to Dublin. Built on two mounds of the esker, it commanded the route into Dublin from the west. Castleknock was the final rallying point for the forces of the last High King of Ireland, Rory O'Connor. He failed to drive the Cambro-Normans from the area around Dublin in 1171. The college is set on 70 acres of landscaped parkland estate with nine rugby pitches, a cricket crease and pavilion, a soccer pitch, an athletics and running track, six state of the art tennis courts, an all-weather rugby practice pitch and