The settlement pre-dates the Roman occupation of Britain, and thus pre-dates the founding of nearby London. Many pre-Roman artefacts have been excavated in and around the area in Brentford known as 'Old England'. Bronze Age pottery and burnt flints have been found in separate sites in Brentford. The quality and quantity of the artefacts suggests that Brentford was a meeting point for pre-Romanic tribes. One well known Iron Age piece from about 100 BC – AD 50 is the Brentford horn-cap – a ceremonial chariot fitting that formed part of local antiquarian Thomas Layton's collection, now held by the Museum of London. The Celtic knot pattern (the 'Brentford Knot') on this item has been copied for use on modern jewellery.