Many Cambridge colleges originally held the balls in May, sometimes in the week preceding year-end exams. Today, they take place in
May Week, which usually starts on the second Thursday of June following the end of exams, and which includes
Suicide Sunday. The balls operate a strict
dress code. Magdalene insists on
white tie, which is recommended but not required at Trinity and Peterhouse, while all the others have a minimum of only
black tie. Most balls are themed, though Magdalene, Peterhouse, and Trinity's are notable for their lack of a theme. St John's Ball is best known to have a secret theme only revealed on the night of the event, previous themes have included Mythicas and Through the Lens. held its 100th May Ball in 2013 May Ball in 2007. The
First and Third Trinity Boat Club May Ball (named after the
boat club, but now run by
Trinity College), held on the first Monday of May Week, and the St John's May Ball, held on the first Tuesday.
Magdalene and
Peterhouse hold exclusive white tie balls, with Peterhouse beginning this tradition in 1892. Other desirable May balls are held annually by
Clare, which has some of the most beautiful gardens,
Jesus, whose ball is popular amongst
first year students, and
Queens', whose balls are well known for finding soon-to-be-famous up and coming acts (see
Performances below).
Homerton hosts the first ball of May Week, and is also one of the least expensive black tie balls, but still provides an extravagant start to May Week.
St Edmund's hosts the final ball of May Week and is known for attracting finalists and postgraduates.
Christ's is known for securing high-profile acts. Trinity, Clare and St John's are situated directly on the
River Cam, along the
Backs, as are
Queens',
Magdalene and
Trinity Hall. As a result, when several balls are held on the same evening, the river is lit up in different colours from the lights and the fireworks, creating a memorable backdrop to the evening's festivities. The latest break from tradition comes from
Darwin, who are hosting the first ever
plant-based May Ball. Annual balls are held by Clare,
Darwin,
Hughes Hall,
Homerton,
Jesus,
St Edmund's,
Robinson,
Trinity,
St John's and
Wolfson; while
Magdalene,
Pembroke,
Emmanuel,
Corpus Christi,
Christ's,
Downing,
Girton,
Gonville and Caius,
Newnham,
Queens',
Sidney Sussex,
Selwyn, and
St Catharine's hold May Balls every two years. Most balls have fundamental similarities: all will offer guests a variety of food, entertainment, and a selection of alcoholic drinks. The quality and diversity of all of these vary markedly between different balls. While all claim to offer luxury (and many deliver), some have distinctive hallmarks: Peterhouse is famed for its
ferris wheel, Magdalene for its dining, Trinity for its exceptional fireworks and flame display, Clare for its entertainment lineup and St John's for its party atmosphere. Often the balls have overarching themes, sometimes they are fancy dress. Ball entertainment is a closely guarded secret, not least because of the fear that other committees will 'free ride' by booking an act already booked at another ball and thus have to pay a reduced fee because the band is in Cambridge already, whilst simultaneously devaluing the 'get' by the initial contractor. This was seen in 2010 when
Two Door Cinema Club performed at four separate balls. Partly for this reason, ball line-ups are not usually announced until the night of the ball, although they tend to leak out fairly early. ==Ball crashing==