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Brazilians will vote in the first round of presidential elections on Sunday. The front-runner is former leftist president Luiz Inacio Lula da Silva – currently, polls suggest he has a healthy lead over the incumbent far-right president, Jair Bolsonaro. Political observers say these will be the most closely watched elections since Brazil returned to democracy in 1989 - and some of the most polarised, as Katy Watson explains.

Singapore recently announced it will repeal its strict laws banning gay sex after years of fierce debate. But even during that period, Singapore’s gay bars, nightclubs and festivals continued to thrive and are now being showcased in the city-state’s first LGBT walking tour. Tessa Wong went for a stroll.

Tensions flared up again earlier this month between the former Soviet states of Armenia and Azerbaijan leaving more than 200 people dead. The fighting is linked to decades-old hostilities over control of the Nagorno-Karabakh region. A fragile ceasefire is now in place. Grigor Atanesian spoke to one family who have twice been forced from their home in recent weeks.

In North America, John Murphy watches a game of lacrosse in the region where it first originated, among Native Americans. Following the arrival of European colonisers, the original game was adopted and adapted, becoming a staple sport in elite schools and colleges - with indigenous players excluded. Now, there’s a move to reclaim the indigenous game.

The Roman emperor Domitian was known for his tyrannical rule. After his death, by assassination, the Roman Senate tried hard to condemn his memory to oblivion - but not everything was eradicated, as Hugh Levinson discovered on a visit to the walled city of Kotor in Montenegro.

Presenter: Kate Adie
Producers: Serena Tarling and Ellie House
Editor: Richard Fenton-Smith
Production Coordinator: Iona Hammond