Johannesburgo

The provided articles do not directly discuss Johannesburgo (Johannesburg). One article focuses on the release of political prisoners in Cuba following threats from the Trump administration. The other article details an exhibition at the Reina Sofia Museum in Spain, where Dumile Feni's 'African Guernica,' a charcoal piece from the 1960s by a South African artist, is displayed opposite Picasso's 'Guernica.' This juxtaposition aims to create a dialogue about state violence, apartheid, and different forms of modernity. While Feni was a South African artist, and his work addresses issues relevant to South Africa's history, the article does not mention Johannesburg specifically. Therefore, it's impossible to provide a summary about Johannesburg based on these articles.