Time travel is a widely-recognized concept in philosophy and fiction. It is uncertain if time travel to the past is physically possible. Forward time travel, outside the usual sense of the perception of time, is possible according to special relativity and general relativity. Philosophers have discussed the nature of time since at least the time of ancient Greece; ...
1989-12-19 Rheydt, Germany / Silver Wedding / Silberne Hochzeit / Casamento de Prata / Boda de Plata
The historic origins of wedding anniversaries date back to the Holy Roman Empire, where husbands crowned their wives with a silver wreath on their 25th anniversary, and a gold wreath on the 50th. The tradition may have originated in medieval Germany where, if a married couple lived to celebrate the 25th anniversary of their wedding, the ...