Of Greenwich Maritime Museum? Of the Treasurer of Morocco? Of Whitworth threads?
Not considered them? Not formed your opinion? Perhaps you have not had a chance to look into them. If they are at all of interest, make use of the internet to gather some information. It may be flawed in many respects, but if you can find multiple sources you may be able to gain enough insight to be able to discuss them.
If you just depend upon 5-second sound bites and pre-digested opinions of political adherents, you may be lured into unsubstantiated speech. Often it cannot stand against real thought.
Get the facts – get them from the primary source if possible. Find them out – don’t just let others hand them to you. Subject them to your own critical thought. You may be wrong or right, but you’ll be the one controlling your own mind.