Britain's Queen Elizabeth planned to put on a special robe and ride in a royal carriage Tuesday to Parliament, where she was to open the new session with her highly anticipated Queen's Speech. The occasion is considered the most important constitutional event of the year and sets out the government's legislative program, CNN reported. The state opening of Parliament, as it is called, usually takes place in November or December. It is happening in May this year because of Britain's recent elections, which ushered in the country's first coalition government for 70 years and give the event added significance. The queen's speech sets out the new Conservative-Liberal Democrat government's legislative agenda, which this year is expected to include many new measures in a break from the old Labour policies.