Friedrich Engels contributions to Marxism remain as important as ever. Adam Booth discusses the key role that Engels played in developing the ideas of scientific socialism – ideas that we continue to fight for today.

The Socialist Party and its international organisation are facing a deep political crisis. This is the product of decades of incorrect methods and perspectives. It is important for Marxists to draw out the lessons of these events.

One century ago, on 2-6th March 1919, the first congress of the Third International took place in Moscow. This marked the birth of the Communist International, which became a vital school of revolutionary ideas and strategy.