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Max Pearson presents a collection of this week\\u2019s Witness History episodes from the BBC World Service.

We hear from Kwasi Okoh about how his mother Theodosia Okoh designed Ghana\\u2019s flag after it became the first country in sub-Saharan Africa to gain independence.

Our guest, former diplomatic and foreign affairs editor, Tim Marshall, explains the importance of flags for national identity and their changing purpose through history. We also learn about the moment in 1966 when Kwame Nkrumah, one of Africa's most famous leaders, was ousted from power in Ghana.

Plus, how in 2013, India's Supreme Court made a landmark ruling aimed at transforming the lives of acid attack survivors. It followed a campaign led by Laxmi Agarwal who at the age of 15 was burned when acid was thrown at her.

And the artist Yinka Shonibare discusses how \\u2018Nelson\\u2019s Ship in a Bottle\\u2019 exhibited in London\\u2019s Trafalgar Square was the world\\u2019s largest ship in a bottle.

And finally, how Kimani Maruge became the oldest man to enroll at a primary school in Kenya.

Contributors:\\nKwasi Okoh - son of Theodosia Okoh\\nTim Marshall - former diplomatic and foreign affairs editor for Sky News\\nChris Hesse - Ghanaian filmmaker\\nLaxmi Agarwal - acid attack survivor\\nYinka Shonibare - creator of Nelson\\u2019s Ship in a Bottle\\nJane Obinchu - Kimani Maruge\\u2019s former teacher

(Photo: Ghanaian football fans wave their national flag. Credit: Getty Images)