100 years or 2000 years what's the difference?

Our class went on a visit to a museum. It is a museum of 'real life' so basically everything that was used in the home up until the present day. Eg. washing machines, irons, wedding dresses etc. Part of the museum is an old Victorian street with lots of shops. It is very authentic and lit with gas lighting. We went into a sweet shop where the lady was explaining how to get sugar out of sugar cane. Next to her was a massive cake, beautifully iced. It was obviously iced for royalty or the very rich.
'Who do you think this cake is for?' she asked.
lots of blank faces...then a little lad's hand shot up.
'I know, I know'
'Oh good who?' said the lady.
'BABY JESUS!'

Oh dear, nevermind he was close. 100 year or 2000 years there isn't THAT much difference is there?