The Society has held anniversary dinners in September. The most recent four dinners (2003, 2006, 2009 and 2012) have been held outside of London - at Cambridge, York, Bristol and Birmingham respectively. The next formal dinner will be in 2015 at a venue to be confirmed. Holding a formal dinner every three years has proved popular and it really feels like a special occasion.
Read the write-up of the 2012 Dinner in Birmingham.