Eleni asked:

I would like to know something about the term ukroni: the origin and the meaning.

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The word 'uchronie' was coined by the French philosopher Charles Renouvier as the title of his 1876
essay on the conception of imaginary worlds. It is used to refer to the whole business of analysing
imagined universes and societies, especially as presented in science fiction, utopian philosophies and
fantasy stories. Taken from the Greek 'kronos' for time, with the negative 'u' prefix, in English it is
usually rendered as 'uchronia', while the 'ukronia' you give is, I think, the Swedish version. You'll find
an interesting essay about it in Paul K. Alkon's 'Origins of Futuristic Fiction' and a whole website at
http://www.uchronia.net

Sounds to me like you might be ready for the Pathways to Philosophy Possible World Machine
programme!

Glyn Hughes