On 21st April 1992, Astronomers Aleksander Wolszczan and Dale Frail announced the discoveries of first extrasolar planets known to man. The two planets are orbiting the pulsar PSR 1257+12.
For a period of 10 days, IP addresses belonging to the offices within the US House of Representatives were banned from Wikipedia. This was done to restrain the modifications being made to the biographical articles of politicians by their staff on the online free encyclopaedia. [more...]