Interesting Fact # 1093 - Protocol

When photographing a group of heads of state, protocol decrees that the host should stand in the centre at the front and next to him should be the longest-serving leaders.

(At the recent G20 summit, Gordon Brown, as host, stood front and centre, with the dignitaries radiating out from him in order of seniority and length of service, meaning the positions on either side of Brown were reserved for the heads of state who had been in harness the longest - President Luis "Lula" Ignacio de Silva of Brazil and Hu Jintao of China. As the new kid on the block, Barack Obama was shuffled slightly off centre.)

Source - The Guardian