经济学人下载:时间机器解密 新石器时代的繁荣期

Agriculture seems to have arrived fully formed in what is now Kent, in the south-east, around 4050BC. The new culture spread slowly at first, taking 200 years to reach modern-day Cheltenham, in the west, but over the following five decades it penetrated as far north as Aberdeen. Soon afterwards, causewayed enclosures (circular arrangements of banks and ditches hundreds of metres across—see picture) began springing up all over the country.

大约在公元前4050年，在现今的英国东南部的肯特郡(Kent),那里的农业时代似乎已经到来并发展成熟。起初这种新文化传播缓慢，用了200年的时间才到达今天英国西部的切尔滕纳姆(Cheltenham)，但是在后续的50年中，它迅速东扩到了北部的阿伯丁(Aberdeen)。随后，筑有堤道的围场（其格局为几百米跨度的环形堤岸与沟渠）开始在全国遍地开花。

Until now, archaeologists had assumed that these were built over the course of centuries. Dr Bayliss’s work suggests they were the product of two booms, each just a few decades long—for the Neolithic seems to have seen its share of busts, too.

现在，考古学家断定这些建筑物是在几百年间陆续建成的。Bayliss博士的考古研究表明它们是两个繁荣期的产物，每个繁荣期的持续时间仅为几十年，可见新时器时代似乎也存在过衰落的萧条期。

The team’s work offers such a sharp picture of the past that it is possible to trace the histories even of individual communities, such as one in Essex whose inhabitants built, used and then abandoned an enclosure within the span of a single generation.

考古研究小组为我们展示了清晰的远古画面，让我们可以追溯到更远的历史甚至小的个体群落，例如在埃塞克斯（Essex)考古遗址,考古人员发现了当时原始居民修建，使用和后来废弃的围场，它伴随了一代人的成长。

English Heritage now plans to apply the technique to another murky era of British history, the early Anglo-Saxon period between 400AD and 700AD. In principle, the method can be applied to any archaeological site, and several groups of researchers around the world are working on similar projects. But, fittingly for a discipline that deals in centuries and millennia, the revolution will be a slow one. Unlike traditional radiocarbon dating, which can be bought off the shelf, Dr Bayliss reckons it takes between three and four years to train a graduate researcher to use the new technique properly.

现在英国古迹署计划将此技术应用于英国另一段有着模糊记载的历史年代，即介于公元400年至公元700年的早期盎格鲁-撒克逊时期。理论上，此种方法可以应用于任何一个考古遗址，现在全世界已经有几组考古人员运用此方法进行着类似的考古项目。但是恰当地说，对一门牵涉几百年和上千年的学科，它的革新将是一个漫长的过程。传统的放射碳断代法是一种现学现卖的技术，但地层学与之不同，Bayliss博士认为培养一名完全掌握此项新技术且具有硕士学位的研究人员得需要三到四年的时间。