The name Blackrod derives from the Old English, blaec and rodu, meaning a "dark clearing". The first mention of the town dates to 1189, when it was recorded as Blacherode. It was recorded as Blakerodein 1200, and Blacrode in 1220. Another suggestion is that "rod" may refer to Holy Rood, Cross of Christ. Blackrod is reputed to be the site of a Roman station and they built a fort on the northern side of the town, on what is now a residential area called Castle Croft. The A6 road is built along the course of a Roman road that passes below the hill on which the town is built. In the first half of the 12th century the manor of Blackrod was held by William Peverel, but was confiscated by the king and in 1190 it was granted to Hugh le Norreys. In 1212 Hugh de Blackrod was tenant. In 1223 Hugh Norreys became lord of Blackrod and the manor descended through his family. Mabel Norris heiress of Blackrod and Haigh married Roger de Bradshaw and the manor remained with the Bradshaws until the 16th century. Arley Hall was an estate in the west of the township held by William le Walsh in 1393 and later by Standishes and Norrises. The hall was a moated manor house and is now the site of Wigan Golf Course. After the Industrial Revolution the main industry of the town was coal mining and there was a brickworks. In 1869, the collieries operating in Blackrod included Anderton Hall, Dootson Vauze, Park Hall, Rigby Hill, Marklands and Blackrod. The Scot Lane Colliery employed 628 men underground and 122 surface workers in 1923; it closed in 1932. There were formerly bleachworks, a calico-printing works, and a weaving mill was built in 1906.
The earliest school in the township was Blackrod Grammar School, founded in 1586 by John Holmes. It had a building, now demolished, near the church and in 1875 was amalgamated with Rivington Grammar School. In 1973 the Rivington and Blackrod Grammar School became Rivington and Blackrod High School in Horwich providing secondary education for many pupils in Blackrod. Blackrod has two primary schools: Blackrod Anglican Methodist Church School and Blackrod Primary School. A third school, which was situated towards the southern end of the town, closed in 2008.
Religion
The earliest mention of a chapel in Blackrod was in 1338 when Dame Mabel de Bradshagh endowed a chantry priest to say divine service and mass in the chapel of St Catherine. The present church, dedicated to St Katharine of Alexandria, is of Norman design though Elizabethan work can still be seen. The parish church was enlarged in 1776, galleries added in 1837, the roof renewed in 1894, the chancel rebuilt in 1905 and nave in 1911. During this time the spelling was changed to Catherine, and then again to the current Katharine. There are six bells in the west tower, cast in 1776, renewed in 1922, and the clock was illuminated in 1947. A full refurbishment of the belfry installation was completed in 2015.
Transport
Blackrod is served by Blackrod railway station on the Manchester to Preston Line which opened in 1841 and where there was a branch line to Horwich. Mineral lines served the various collieries. The main road through the township was the A6, Manchester to Preston road which now bypasses the town centre. The B5408 goes through the town. There are roads to Horwich and Aspull. The M61 motorway, part of the national motorway network between the M60/M62 and the M6 was opened on 28 November 1969 by Fred Mulley, Minister of Transport.