Some Jewish people follow old ways. 
Some Jewish people follow old ways. 
Orthodox Judaism is a group of people who follow traditional Jewish ways. 

Orthodox Judaism is a term for people who follow traditional Jewish ways. 

Life for an Orthodox person follows many special rules. They pray three times every single day. Men might wear head coverings and tassels. Women often choose to wear modest clothing. They also refrain from many routine actions on the Sabbath and other holidays. 
This way of life grew out of big changes in history. Before the late 1700s, Jewish communities often ran themselves. They had their own courts and leaders. Then, modern states began to take over these powers. This changed how Jewish people lived in society. 
A major turning point happened in a city called Hamburg. In 1818, a group opened the Hamburg Temple. They wanted to use more modern rituals in their synagogue. This included using an organ on the Sabbath.
Today, Orthodox Judaism is a very large group. It is actually the largest Jewish religious group. There are over 2 million people who practice this faith. There are also at least 2 million more who identify with it. 
Orthodox Judaism is a collective term for the traditionalist branches of contemporary Judaism. It is defined by a specific theological stance regarding the Torah. Followers believe that both the Written and Oral Torah were literally revealed by God on Mount Sinai. They hold that these teachings have been faithfully transmitted through the ages without change. This belief leads to a strict observance of Jewish law, known as halakha. 
To understand how Orthodoxy works, one must look at the application of halakha. This legal system is viewed as being grounded in immutable revelation. This means the laws are considered beyond the influence of history or external social changes. Practitioners interpret and determine these laws using only traditional methods. They rely on a continuum of received precedent to guide their decisions. For an Orthodox Jew, obeying dietary, purity, and ethical laws is the central hallmark of their faith.
Orthodox Judaism is not a single, centralized denomination. Instead, it is composed of various subgroups that often have strained relations. One major division is between the Haredi branch and the Modern Orthodox branch. The Haredi, often called Ultra-Orthodox, tend to be more conservative and reclusive. In contrast, the Modern Orthodox branch is relatively open to larger society. They often participate in secular life and culture while maintaining religious laws.
Despite these differences, certain lifestyle practices are common across the movement. Observant Jews refrain from many routine actions on the Sabbath and other holidays. They consume only kosher food and pray three times every day. Men may wear head coverings and tassels, while women often wear modest clothing. 
Historically, Orthodoxy emerged as a modern phenomenon following the breakdown of autonomous Jewish communities. Before the late 18th century, Jewish communities in Central and Western Europe functioned as independent entities. They had their own judicial systems and were led by a class of wardens. However, the rise of modern, centralized states stripped these communities of their legal privileges. The state began to treat Jews as a religious sect rather than an autonomous group. 
The term "Orthodox" first appeared in the German publication Berlinische Monatsschrift in 1795. It was originally used to describe Jews who opposed the Enlightenment. Many traditionalists actually disliked the term, preferring titles like "Torah-true." A major turning point occurred during the Hamburg Temple dispute between 1818 and 1821. A group in Hamburg sought to modernize rituals, such as using an organ on the Sabbath.
Today, Orthodox Judaism is the largest Jewish religious group. It is estimated to have over 2 million practicing adherents. There are also at least 2 million people who identify as nominal members or supporters. 
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