The present volume is the fourth issue of the Almanac series entitled ‘Evolution’. Thus, one can maintain that our Almanac, which has actually turned into a Yearbook, has succeeded (see below). The title of the present volume is ‘From Big Bang to Nanorobots’. In this way we demonstrate that all phases of megaevolution and Big History are covered in the articles of the present Yearbook. Several articles also present forecasts about possible future developments.