Some context: Gaelic Ireland (Irish: Eire Ghaidhealach) was the Gaelic political and social order, and associated culture, that existed in Ireland from the prehistoric era until the early 17th century. Before the Norman invasion of 1169, Gaelic Ireland comprised the whole island. Thereafter, it comprised that part of the country not under foreign dominion at a given time. For most of its history, Gaelic Ireland was a "patchwork" hierarchy of territories ruled by a hierarchy of kings or chiefs, who were elected through tanistry.
For most of the Gaelic period, dwellings and farm buildings were circular with conical thatched roofs (see roundhouse). Square and rectangle-shaped buildings gradually became more common, and by the 14th or 15th century they had replaced round buildings completely. In some areas, buildings were made mostly of stone. In others, they were built of timber, wattle and daub, or a mix of materials. Most ancient and early medieval stone buildings were of dry stone construction. Some buildings would have had glass windows. Among the wealthy, it was common for women to have their own 'apartment' called a grianan (anglicized "greenan") in the sunniest part of the homestead.  The dwellings of freemen and their families were often surrounded by a circular rampart called a "ringfort". There are two main kinds of ringfort. The rath is an earthen ringfort, averaging 30m diameter, with a dry outside ditch. The cathair or caiseal is a stone ringfort. The ringfort would typically have enclosed the family home, small farm buildings or workshops, and animal pens. Most date to the period 500-1000 CE and there is evidence of large-scale ringfort desertion at the end of the first millennium. The remains of between 30,000 and 40,000 lasted into the 19th century to be mapped by Ordnance Survey Ireland. Another kind of native dwelling was the crannog, which were roundhouses built on artificial islands in lakes.  There were very few nucleated settlements in Gaelic areas. However, after the 5th century some monasteries became the heart of small "monastic towns". By the 10th century the Norse-Gaelic ports of Dublin, Wexford, Cork and Limerick had grown into substantial settlements. It was at this time, perhaps as a response to Viking raids, that many of the Irish round towers were built.  In the fifty years before the Norman invasion, the term "castle" (Old Irish: caistel/caislen) appears in Gaelic writings, although there are no surviving examples of pre-Norman castles. After the invasion, the Normans built motte-and-bailey castles in the areas they occupied, some of which were converted from ringforts. By 1300 "some mottes, especially in frontier areas, had almost certainly been built by the Gaelic Irish in imitation". The Normans gradually replaced wooden motte-and-baileys with stone castles and tower houses. Tower houses are free-standing multi-storey stone towers usually surrounded by a wall (see bawn) and ancillary buildings. Gaelic families had begun to build their own tower houses by the 15th century. As many as 7000 may have been built, but they were rare in areas with little Norman settlement or contact. They are concentrated in counties Limerick and Clare but are lacking in Ulster, except the area around Strangford Lough.  In Gaelic law, a 'sanctuary' called a maighin digona surrounded each person's dwelling. The maighin digona's size varied according to the owner's rank. In the case of a boaire it stretched as far as he, while sitting at his house, could cast a cnairsech (variously described as a spear or sledgehammer). The owner of a maighin digona could offer its protection to someone fleeing from pursuers, who would then have to bring that person to justice by lawful means.
What material were the buildings made of?
A: concentrated in counties Limerick and Clare but are lacking in Ulster, except the area around Strangford Lough.
Some context: Ara Raoul Parseghian (May 21, 1923 - August 2, 2017) was an American football player and coach who guided the University of Notre Dame to national championships in 1966 and 1973. He is noted for bringing Notre Dame's Fighting Irish football program from years of futility back into a national contender in 1964 and is widely regarded alongside Knute Rockne and Frank Leahy as a part of the "Holy Trinity" of Notre Dame head coaches. Parseghian grew up in Akron, Ohio, and played football beginning in his junior year of high school. He enrolled at the University of Akron, but soon quit to join the U.S. Navy for two years during World War II.
In 1966, Parseghian guided Notre Dame to its first national championship since the Leahy era. Led by quarterback Terry Hanratty, running back Nick Eddy, star receiver Jim Seymour, and fullback Larry Conjar, the offense was best in the nation in scoring, with an average of 36.2 points per game. The defense was second in the country in points allowed, thanks to strong performances by linebacker Jim Lynch and defensive end Alan Page.  The season began with eight straight victories, propelling Notre Dame to the top of the national polls. The team then faced Michigan State (who had Bubba Smith), which ranked second in the polls and was also undefeated. The contest, one among a number referred to as the "game of the century", ended in a 10-10 tie. Parseghian was criticized for winding down the clock instead of trying to score despite having the ball in the final seconds of the game. He defended his strategy by maintaining that several key starters had been knocked out of action early in the game and that he did not want to spoil a courageous comeback from a 10-0 deficit by risking a turnover deep in his own territory late in the game. When Parseghian's team trounced USC 51-0 the following week, critics alleged that he ran up the score to impress poll voters who had split the number-one ranking between Notre Dame and Michigan State following the tie. Subsequent to the USC rout, the final wire service polls gave Parseghian's team the national championship, although Notre Dame did not participate in a post-season bowl game. Nine members of the team were selected as All-Americans, and Parseghian was named coach of the year by Sporting News.  Several winning seasons followed, but Notre Dame did not repeat as national champion in the late 1960s. In 1969, the team finished with an 8-2-1 record and accepted an invitation to play in the postseason Cotton Bowl. With this game, the school ended a long-standing policy of not playing in bowl games. The university urgently needed money to fund minority scholarships and decided to use the proceeds from bowl games for this purpose. Parseghian's team lost the game, 21-17, to the eventual national champion Texas Longhorns.
did anyone beat them that year?
A:
he did not want to spoil a courageous comeback from a 10-0 deficit