What do you know about the word okay? It seems very simple, but it is actually very complex! In recognition of the UN's "International Mother Language Day", Liz Waid and Colin Lowther look at the uses and history of this common word.
Colin Lowther and Liz Waid tell about a man who is making symbols of hope for people who need them. What gives you hope?
Adam Navis and Liz Waid give a short history of how people around the world get vaccines. We will have to use many of these methods to deliver vaccines that everyone needs – the COVID-19 vaccines. How do you get vaccines?