The Meyboom plantation (or Meiboom in Dutch, "May tree" – a bastardisation of the Dutch tree of joy) is the oldest tradition in Brussels, Belgium, attested since 1308. It is held every year on 9 August, the eve of St Lawrence's Day, and consists mainly in planting a beech at the intersection of the / and the / in the City of Brussels' Marais–Jacqmain District. It is accompanied by processions and various folk activities during the day. The celebration is reminiscent of Brussels' long-standing (folkloric) feud with Leuven, which dates back to the Middle Ages. Following a friendly incident in 1974 in which the Meyboom was stolen and brought to Leuven, both cities have claimed to be planting the "real" Meyboom. Since 2008, it is recognised as a Masterpiece of the Oral and Intangible Heritage of Humanity by UNESCO. History According to tradition, the celebration commemorates a victory of Brussels over the nearby Flemish town of Leuven in 1213. The Companions of St Lawrence, a city guild, came to the aid of Brussels' inhabitants and vigorously repelled the aggressor. Grateful, the Duke of Brabant at the time (Henri I of Brabant), granted the status of corporation to the guild and gave it the right to plant henceforth a tree of joy or Meyboom. In honour of the new corporation, the date of the plantation was fixed to 9 August, the eve of St Lawrence's Day, the guild's patron saint. In spite of Brussels' tortuous history, including the 20th-century demolition of most of the Marais–Jacqmain District, the Meyboom tradition has been maintained throughout the centuries. An incident happened, however, in 1974, when a group of men from Leuven, called The Men Of 1929, managed to find out which tree Brussels had earmarked as their Meyboom. During the night of 8 August, they cut down the tree and transported it to Leuven, where they planted it in front of the city hall. Brussels chose to ignore what had happened and cut down another tree. Ever since, the two cities have been involved in a friendly rivalry to decide who has the "real" Meyboom. Since 2008, the Meyboom has been recognised as a Masterpiece of the Oral and Intangible Heritage of Humanity by UNESCO, as part of the binational listing of 'Processional giants and dragons in Belgium and France'. Celebrations The tree is designated by the city's Plantation Department and "chosen" by the