Following the initiative and involvement of the National Bank of Greece, the production of electric energy in the region of the capital, was undertaken by the English company Power. Both the lamp of oil and the cooker of accelerator were replaced by the electric cooker and the refrigerator. The telephones that functioned via telephone centre were then replaced from automatic ones. The first spoken films made their appearance. The radios that replaced the gramophones and the barrel-organs first appeared. Not only the celebration of the Carnival that took place in Plaka and its parade, but also the public celebration of Koulouma on Lent Monday that took place at the Columns of Olympian Zeus and in Thisseio were both abolished. The celebration of May Day that took place in Patissia with the usual making of garlands in order to decorate the front doors and the balconies was also abolished. The Carnival is one of the most important Greek popular feasts, the roots of which reach up to the Dionysus’ bacchic feasts in antiquity. The Carnival lasts three weeks before Lent and represents the adoration of nature’s rebirth, of fertility and life’s victory on death. Maintaining elements of ancient myths and medieval deliveries, it is celebrated with songs, dancing and popular theatre (called "dromena") that impose disguise in suits and masks and parade in the streets of the city. The mood of the days imposes intensity, ecstasy and intense rhythms. The atmosphere and the decoration in the streets of Athens during the Carnival period is festive, while in Plaka which has always been the centre of carnival events, masquerades are a daily spectacle.