Clogging was social dance in the Appalachian Mountains as early as the 1700's.
As the clogging style has migrated over the years, many localities have made contributions by adding local steps and rhythms to the style. Welsh seamen appear to have adopted the dance very early on and may have been those who introduced it to the British Isles. As the dance migrated to England in the 1400s, the all wooden clog was replaced by a leather topped shoe with a one piece wooden bottom. By the 1500s a more convention leather shoe with separate wooden pieces on the heel and toe called "flats" became popular, from where the terms "heel and toe" and "flat footing" derive.
In later periods it was not always called "clogging", being known variously as flat-footing, foot-stomping, buck dancing,clog dancing, jigging, or other local terms. What all these had in common was emphasizing the downbeat of the music by enthusiastic footwork.As for the shoes many old clogging shoes had no taps.Some were made of leather and velvet.The soles of the shoes were either wooden or hard leather.
English clogging started in the Industrial Revolution. Men sitting at the weaving machines wore hard-soled shoes, which they would tap to the rhythms of the machines to keep their feet warm. At their breaks and lunches, they would have competitions, where they were judged on the best rhythm patterns. In later years of the Industrial Revolution, they clogged on proper stages at competitions. In these competitions, the judges would watch the routine and judge it according to footwork, precision, and technique. Clogging traditions still exist in some festivals in Northumberland, and are danced to the traditional music of the area.
More recently Peter Zebedee has begun a Clogging revival in the provincial Northern town of Keighley. Modern Clogging or "Clog Clubbing" is picking up and proving to be quite popular.
Solo dancing (outside the context of the big circle dance) is known in various places as buck dance, flatfooting, hoedown, jigging, sure-footing, and/or stepping. These names vary in meaning from place to place, and dancers do not always agree on their use. 
The term 'buck', as in buck dancing, is traceable to the West Indies and is derived from a Tupi Indian word denoting a frame for drying and smoking meat; the original 'po bockarau', or buccaneers were sailors who smoked meat and fish after the manner of the Indians.
Another source states that the word bockorau can be traced to the "Angolan" word "buckra', and was used to refer to white people,
which is disputed.
Eventually the term came to describe Irish immigrant sailors whose Jig dance was known as 'the buck.'" 
The old-style African-American buck dance consisted essentially of a stamp and slip of the weight-bearing foot backward, often with an incidental toe bounce, with the body leaning forward. The Appalachian-mountain buck dance, as done by European-Americans, generally begins with a stamp, followed by a forward heel brush and a toe slap with the free foot. The dancer's posture is straighter than the Appalachian clogger's, but more relaxed than the English and Irish step dancer's. 
One source states that buck dancing was the earliest combination of the basic shuffle and tap steps performed to syncopated rhythms in which the accents are placed not on the straight beat, as with the jigs, clogs, and other dances of European origin, but on the downbeat or offbeat, a style derived primarily from the rhythms of African tribal music.
Buck dancing was popularized in America by minstrel performers in the late nineteenth century. Many folk festivals and fairs utilize dancing clubs or teams to perform both Buck and regular clogging for entertainment.
Traditional Appalachian clogging is characterized by loose, often bent knees and a "drag-slide" motion of the foot across the floor, and is usually performed to old-time music.
Modern competitive clogging, also called precision clogging is inspired by traditional styles but performed to a wide variety of music, including bluegrass, modern country, rock music, pop, and hip hop. Today competitive precision clogging has several sanctioning bodies that oversee competitions held throughout the United States, with the majority located in the southeastern states. Also the style has evolved from flat foot to dancing on the balls of your feet. Toe stands are a recent adaptation from other dance forms. These high-energy styles have opened the forum to a wide audience with hundreds of workshops and competitions every year.
Clogging is the official state dance of Kentucky and North Carolina.
Clogging shoes are often black or white. Some people feel that white shoes are better at attracting attention from an audience. Clogging shoes generally have taps that are double taps or "jingle taps". This makes it so there are four taps on each shoe--two on the toe, and two on the heel. One is securely fastened to the shoe, while the other is more loosely fastened and hits both the floor and the fastened tap while dancing or simply walking about. That is why you can hear cloggers on carpet as well as hard surface floors.
Cecil Sharp frequently encountered step dancing and clog dancing in his search for folk dances in England, but it was Maud Karpeles who was more conspicuous in documenting it. She encountered groups of Morris clog dancers in the North-West of England. Her book The Lancashire Morris Dance was published in 1930.
In 1911 John Graham had published Lancashire and Cheshire Morris Dances from the same area. Both in the USA and in England it was also known as "buck and wing" dancing. The "wing" referred to, is the step where a foot is kicked out to one side, striking the ground as it goes.