Further spelling variations are seen in 1460 as Agmondysham and Amytysham [4] The Domesday entry reads: Queen Edith was the wife of Edward the Confessor and sister of King Harold, and after her death in 1075, the land passed to William the Conqueror, who granted it to Geoffrey de Mandeville (died c. 1100).

In 1200, his descendant Geoffrey de Mandeville (who became the Earl of Essex in 1213) obtained a charter for Amersham allowing him to hold a Friday market and a fair on 7 and 8 September.

In 1613, another charter was granted to Edward, Earl of Bedford, changing the market day to Tuesday, and establishing a statute fair on 19 September.

A memorial to them was built in 1931 and is inscribed as follows: "In the shallow of depression at a spot 100 yards left of this monument seven Protestants, six men and one woman were burned to death at the stake.

[7] In 1931, the architect Amyas Connell completed the Grade II-listed art deco house "High & Over" in Amersham.

[9] Amersham sent two Members of Parliament (MPs) to the unreformed House of Commons from 1625, and was considered a rotten borough until the Reform Act 1832 stripped it of its representation.

After her death on 4 April 2021,[10] the seat went to the Liberal Democrats for the first time since its creation when Sarah Green won the ensuing by-election on 17 June 2021.

[15] The town is located at the junction of the A355 from Slough and Beaconsfield, the A404 linking Maidenhead, High Wycombe and Rickmansworth, the A416 from Chesham and Berkhamsted and the A413.

After this date the growth of the new area of the town gradually accelerated, with much work being done by the architect John Kennard.

London Transport abandoned plans to electrify beyond Amersham and the stations and line were sold to British Railways on 11 September 1961.

The town features in the 1973 John Betjeman documentary Metro-land about the growth of suburban London in the 20th century.

The station was built a mile to the north of the old market town and has provided the focus of Amersham-on-the-Hill ever since.

[17] The line will cross the Colne Valley and the M25 motorway on a viaduct, and then through a 10-mile (16 km) tunnel under the Chiltern Hills to emerge near South Heath, northwest of Amersham.

In 1929 Gerrard Weller sold the brewery and 133 tied public houses to Benskins of Watford for £360,000, a move that led to the end of brewing in Amersham.

[20] Halma, specialists in hazard and life protection products and headquartered in Old Amersham, is now a member of the FTSE 100 index.

The present exterior is largely Victorian but the building contains a 14th-century font, 17th-century glass from Lamer Manor in Hertfordshire, and monuments in the chancel and in the Drake Chapel to 17th- and 18th-century notables.

[27] Amersham has a King George's Field in memorial to King George V. Near the playing field is the Chiltern Lifestyle Centre, which contains an indoor climbing wall, two swimming pools, a gym, four badminton courts, two squash courts, a library, a cafe, a children's nursery, two spas and a community centre.

The local newspaper covering Amersham and the surrounding area was the Buckinghamshire Examiner, founded in 1889, until its closure in 2019.

Houses taking their TV reception from the Chesham Bois transmitter[31] have vertically polarised aerials, whilst those in a good enough position receive their signal from the Crystal Palace Transmitter in London with horizontally polarised aerials – they always could receive BBC2 (and indeed Channel 4 & Channel 5).