![History Extra podcast show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/038/573/small/history-extra-podcast.jpg)
Summary: Robert Ferguson considers what drove the Vikings to launch their seaborne attacks, while Peter Martin reviews the life and personality of Dr Johnson.
Summary: Robert Ferguson considers what drove the Vikings to launch their seaborne attacks, while Peter Martin reviews the life and personality of Dr Johnson.