Here's a possible description for your YouTube channel Did You Know:

Welcome to 'Did You Know'!

On this channel, we'll explore fascinating facts, surprising truths, and mind-blowing insights on a wide range of topics. From science and history to technology and culture, we'll dive into the most interesting and little-known facts that will leave you amazed and curious.

Subscribe to 'Did You Know' for new videos every [insert frequency], and join our community of curious learners and fact enthusiasts! Let's explore the world of knowledge together!

Feel free to customize it to fit your style and together