In the old days, domestic beehives were made by hollowing out logs, making boxes or making skeps (traditional straw beehive). None of the hives contained frames of comb, instead, the bees built their own comb as they would in a wild nest. The bees would be killed to enable the collection of honey and hive products such as beeswax. Only in the mid-19th century did beekeepers start adopting the idea of a hive with removable frames. This followed the discovery that honey bees could be persuaded to build their comb on frames as long as the spacing was similar to that of a wild nest and the frames were provided with a beeswax starter strip for the bees to start their comb from. It was by no means a sudden changeover, it took a long time with devotees both of the old and the new style, but nowadays the concept of the removable frame hive is more or less universal.