Ebola is one of the deadliest viruses on earth, with a mortality rate of up to 90 per cent, higher than influenza viruses. Currently, the virus is spreading in West Africa, leading the WHO to say that it is spreading faster than efforts to control it.
Apart from the first and second world wars, the Tour de France has been held every year since 1903 when journalist Geo Lesevre at L'Auto magazine envisaged a cycle race across the country.
With over 700 dead in six accidents in little more than six months, 2014 is likely to be one of the worst years in recent history for commercial aviation.
If you flew between Western Europe and Hong Kong recently, did your aircraft pass over a war zone?
Known affectionately by their reassuringly familiar chime, the city's historic trams have graced our frenetic thoroughfares since 1904. As they celebrate their 110th anniversary, the trams have remained as relevant as ever through constant modernisation, at the same time keeping fares affordable for all.
While Germany beat Argentina in the World Cup final, the real winner is China. The country may not have sent a team to Brazil but its manufacturing might ensured China's presence was felt at every level of the tournament.
This interactive graphic takes a look back at 15 years of tennis through the Grand Slam matches of four greats.