This article explains the disagreements and political errors that marred the early years of the Communist Party of Italy (PCd’I). The Lyon Congress of 1926 was a culmination of the contradictory nature of the PCd’I which – compounded by the bureaucratic degeneration of the Third International – tragically contributed to the defeat of the Italian communists, alongside the rest of the workers' movement, at the hands of fascism.

The 21st congress of Sinistra classe rivoluzione, the Italian section of the International Marxist Tendency, took place on 5-7 December. Restrictions due to the pandemic forced us to keep it online. Far from preventing a large number of participants, these conditions facilitated an exceptional turnout of 94 delegates, and around 200 guests from over 40 cities.