Kresge has redefined itself as a strategic philanthropy, having completed a historic transition that began in 2007.
"The United States and the international community will stand with them as they make this historic transition," Christopher said.
But he will also be remembered for leading the city through a historic transition, the Squeegee Watershed.
We recognize that Russia's historic transition to a market democracy is difficult, all the more reason we must continue to engage Russia.
"For you, historic transition means that you must fight as opponents, not as enemies."
Over all, there was a strong sense of historic transition.
And, now, our alliance faces new challenges at a time of historic transition as we seek to overcome the division of Europe.
This year, the sense of historic transition into the new millennium appears to have increased the yearning among many for a spiritual experience.
It made a historic transition to freer markets and democracy, with respect for human rights and fair elections.
"Cracking down on organisations whose sole purpose is to support the democratic process during Egypt's historic transition sends a disturbing signal," he said.