Dolly the lamb, a breakthrough in the field of science, was the first mammal to be cloned from an adult cell. The deed was done by scientists Ian Wilmut, Keith Campbell and colleagues with the Roslin Institute in Edinburgh. The cell taken to clone Dolly was a differentiated or specialized cell from a specific tissue -the mammal gland- of an adult animal, a six-year-old Fin Dorset lamb.

Up to that moment, it was thought that clones could be taken only from an embryonic cell, that is, a non-differentiated cell. Five months later, Dolly was born. She was the only lamb that resulted from 277 attempts at merging nucleated ovules with nuclei from mammal cells.

With a difference of days, the world suffered two sad losses from quite different environments -Lady Di and Mother Theresa of Calcutta.

Diana, princess of Wales, nee Diana Spencer, was born in Sandringham, Norfolk, on July 1st, 1961, and died in Paris on August 31st, 1997. She was the first wife of Prince Charles of England.

Known as Lady Di, she was the mother of William and Harry, and the daughter-in-law of Queen Elizabeth II of England. Her controversial death in a car crash together with his partner, Egyptian Dodi Al-Fayed, on the Alma Bridge in Paris, turned her into a myth of the British culture and a nonexpendable person in world history.

That same year, on September 5th, Mother Theresa of Calcutta, nee Agnes Gonxhe Bojanhi, passed away.

It is said that on September 1946, the 36-year-old religious took a train from Calcutta to Darjeeling. Upon her arrival, she claimed to have had a revelation. God spoke to her and entrusted her with the task of working for the poor the rest of her life. Some years later, she set up in Calcutta the Missionaries of Charity, a charitable organization. Over half a century, she aided the downtrodden and ill people around the world. She won the Nobel Peace Prize in 1979 for her track record.

Also, the remains of Che Guevara arrived in Havana.