26th of April - the explosion occurred in the 4th reactor
of Chernobyl nuclear power plant.
27th of April– helicopters start to drop sand to the reactor to stop the on going fire.
27th of April - The close town of Pripyat was evacuated.
28th of April - Moscow TV announces the accident. International medias also acknowledges the event. Radiation levels are high in different parts of Europe.
9th of May – First firemen at the site die due to exposure to radiation.
10th of May – the fire in the reactor is extinguished.
3th of June - Viktor Petrovich Bryukanov, the director of the Chernobyl plant is prisoned.
14th of December – A sarcophagus is made to cover the reactor 4.
In 2000 the reactor 3, last functioning reactor of Chernobyl is closed down.
2017 – New Sarcophaugus for reactor 4 should be ready
Timeline of the events: