who perished as a result of the Holocaust. The link below will tell you more.

http://twodressesstudio.blogspot.com/2010/08/butterfly-effect-open-is-calling-you.html
I Never Saw Another Butterfly
The last, the very last,
So richly, brightly, dazzlingly yellow
Perhaps if the sun’s tears would sing
against a white stone....
Such, such a yellow
Is carried lightly ’way up high.
It went away I’m sure
because it wished
to kiss the world good-bye.
For seven weeks I’ve lived in here
Penned up inside this ghetto.
But I have found what I love here.
The dandelions call to me
And the white chestnut branches in the court.
Only I never saw another butterfly.
That butterfly was the last one.
Butterflies don’t live in here, in the ghetto.
Written by Pavel Friedman, 4 June 1942
Born in Prague on 7 January 1921
Deported to the Terezin Concentration Camp on 26 April 1942
Died in Aushchwitz on 29 September 1944
there's plenty of time to make a butterfly you have till 31st December 2011