2000-04: Introduction of 5000 extra police officers
Pedestrianisation of north side Trafalgar Square, Introduction of hawks to reduce pigeon levels, annual St Patrick's Day festival, Rise Festival
September 2001: Introduction of the London Partnerships Register, for same-sex and heterosexual marriages, the precursor to the Civil Partnership Act 2004
June 2002: Introduction of articulated buses
2002-05: Decommission of 1950s-era Routemaster buses
February 2003: Introduction of the London congestion charge
July 2003: Creation of the Oyster card system, free bus travel for 11-18 year olds
2003-08: Assisted the Stop the War campaign
2004: Creation of the London Energy Partnership, and London Hydrogen Partnership
2005: "London Plan" housing development scheme, Successful London bid for the 2012 Olympic Games
December 2005: Hanukkah celebrations in Trafalgar Square
October 2006: "Eid in the Square" Eid al-Fitr celebrations in Trafalgar Square
August 2007: Agreement with Venezuela to exchange expertise in running Transport, Security, and Waste Management services, in exchange for £16 million-worth of fuel
August 2007: Half priced bus fares for 250,000 qualifying Londoners on benefits
March 2008: Barclays Cycle Hire scheme proposal
May 2008: Creation of the Forensic Audit Panel, to take on the Mayor's responsibilities for monitoring and investigating financial management of the Greater London Authority
June 2008: Cancellation of the Venezuela fuel deal
June 2008: Closure of in-house The Londoner newsletter publication
June 2008: Ban of alcohol consumption on the London Underground transit system, extension of Oyster Card system to National Rail services
July 2008: Implemented the Barclays Cycle Hire scheme (now called "Santander Cycles", popularly known as "Boris Bikes")
2009-10: Creation of "Mayor's Fund" charity for disadvantaged youth, funded by London's Banking Industry
2010-12: Creation of Mayor's Office for Policing and Crime, and transfer of Metropolitan Police Authority's powers.
Scrapping the inspection of London taxi cabs
Downsizing the Congestion Charge Zone within West London, and cancellation of increased charge plans for four-wheel drive
June 2013: Introduction of NB4L Modern Routemaster bus model
November 2013: Extension of Tube operating hours to run through the night at weekends
2013-15: Phased closure of all London Underground station ticket offices, replaced with automated ticket machines
50% increase in Bus and London Underground fares for all passengers
May 2016: Froze all London Underground, London rail, and bus fares at 2016 prices for the period between 2016-2020
^"Sadiq Khan Vows To Be 'Mayor For All Londoners'". Sky News. 7 May 2016. Retrieved 9 May 2016. But because of the processes involved, he won't be technically in office until just after midnight on Monday.