Ancient Order of Hibernians

The Ancient Order of Hibernians (AOH) is an Irish Catholic fraternal organisation. Members must be Catholic and either Irish-born or of Irish descent. Its largest membership is now in the United States, where it was founded in New York City in 1836. Its name was adopted by groups of Irish immigrants in the United States, its purpose to act as guards to protect Catholic churches from anti-Catholic forces in the mid-19th century, and to assist Irish Catholic immigrants, especially those who faced discrimination or harsh coal mining working conditions. Many members in the coal mining area of Pennsylvania had a background with the Molly Maguires. It became an important focus of Irish American political activity.

Ireland

The organisation had its roots in the Defenders and the Ribbonmen, Catholic agrarian movements of the 18th and 19th centuries. It emerged in Ulster at the end of the 19th century in opposition to the Orange Order. It was organised by Joseph Devlin of Belfast, who was Grand Master by 1905. The AOH was closely associated with the Irish Parliamentary Party, its members mainly members of the party. It was strongly opposed to secular ideologies such as those of the Irish Republican Brotherhood (the IRB), who were most unhappy at the re-emergence of this old rival "right-wing" nationalist society. Membership in the group was initially banned by the Catholic Church, although this was lifted in 1904.

Big O notation

In mathematics, big O notation describes the limiting behavior of a function when the argument tends towards a particular value or infinity, usually in terms of simpler functions. It is a member of a larger family of notations that is called Landau notation, Bachmann–Landau notation (after Edmund Landau and Paul Bachmann), or asymptotic notation. In computer science, big O notation is used to classify algorithms by how they respond (e.g., in their processing time or working space requirements) to changes in input size. In analytic number theory, it is used to estimate the "error committed" while replacing the asymptotic size, or asymptotic mean size, of an arithmetical function, by the value, or mean value, it takes at a large finite argument. A famous example is the problem of estimating the remainder term in the prime number theorem.

Big O notation characterizes functions according to their growth rates: different functions with the same growth rate may be represented using the same O notation.

The Way Home

The Way Home may refer to:

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The Way

The Way may refer to:

Religion

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Ancient history

Ancient history is the aggregate of past events from the beginning of recorded human history and extending as far as the Early Middle Ages or the Postclassical Era. The span of recorded history is roughly 5,000 years, beginning with Sumerian Cuneiform script, the oldest discovered form of coherent writing from the protoliterate period around the 30th century BC.

The term classical antiquity is often used to refer to history in the Old World from the beginning of recorded Greek history in 776 BC (First Olympiad). This roughly coincides with the traditional date of the founding of Rome in 753 BC, the beginning of the history of ancient Rome, and the beginning of the Archaic period in Ancient Greece. Although the ending date of ancient history is disputed, some Western scholars use the fall of the Western Roman Empire in 476 AD (the most used), the closure of the Platonic Academy in 529 AD, the death of the emperor Justinian I in 565 AD, the coming of Islam or the rise of Charlemagne as the end of ancient and Classical European history.