I read somewhere that the most recent dinosaur is closer in time to the iPhone than it is to the first dinosaur and a quick google seems to confirm. According to the first hit on my "when did dinosaurs live" search, "Dinosaurs lived between about 245 and 66 million years ago". Thus, the most recent were "only" 66 million years ago but they were 179 million years after the first.
WWII is now closer in time to the American Civil War than it is to the present day. WWII is conventionally viewed as running from Germany's invasion of Poland on September 1, 1939 to Japan's surrender on September 2, 1945 (although there is significant debate on the beginning and even the end can be dated to formal end or the treaty or whatever). 1945 was 77 years ago. 1865 was "only" 74 years prior to 1939.
The Moors occupied all or parts of Iberia for longer than they have been gone. The Islamic Arabs first crossed the Straight of Gibraltar in 711 and the last of the Moors were not kicked out by the Spanish until 1492 (just before the Spanish Monarchs financed some crazy guy named Christopher Columbus). Thus, the Moors occupied all or part of the Iberian Peninsula (basically Spain and Portugal) for more than 700 years and it has only been a little over 500 years since they were kicked out.
The Pyramids were older when the Roman Colosseum was built than the Roman Ruins are now. Per another quick Google, the Pyramids were built roughly between 2550 and 2490 BC while the Colosseum was built in 80 AD. Thus, the Colosseum is about 1,942 years old while the pyramids were between 2,570 and 2,630 years old when it was built. Similarly, the Romans took over Egypt in 30 BC (2,052 years ago) and the Pyramids were older then than the Roman Colosseum is now.
WWI is almost as close in time to the Louisiana Purchase as it is to the present day. WWI ran from 1914 to 1918. 1918 was 104 years ago while the Louisiana Purchase was in 1803 or 111 years before the beginning of WWI.
The last Battleship commissioning is closer in time to the first Battleship commissioning than it is to the present day. HMS Vanguard was laid down during WWII and delayed multiple times during the war due to Britain having more pressing needs. It was eventually completed and commissioned in 1946. Several other Countries (including the US) had Battleships under construction when WWII ended but Vanguard was the only Battleship to be completed and commissioned post-war. The first of what became known as "pre-dreadnought" battleships was the British Devastation class the first of which were commissioned in 1874. 1874 was just 72 years before 1946 while 1946 was 76 years ago.
