A significant anniversary is being marked with various tributes. Memorial rituals are taking place, including the reading of victims' names and moments of silence. These events honor a day that has had a lasting impact on many people.

A new poll suggests that about half of US adults consider this event the most historic of their lifetime. The anniversary is being observed by officials, including a ceremony attended by President Donald Trump. Further details about these events and other related news are available from the source, including information about a federal court decision regarding a coal plant in Michigan.