Mister Stoker is thought to have based his evil Count Dracula character on a ruler who lived in fifteenth century Romania.

VOA: special.2010.01.20

So, initially they came up with four lines and then eventually five and even six, and then they went back to five by the fifteenth century.

那么,他们最初提出的是四条线,但是最终却是五条线,甚至六条线,然后在十五世纪又回到了五条线

耶鲁公开课 - 聆听音乐课程节选

This is the pulse of music and music theorists ever since the late fifteenth century from music theory Francinus Gafurius on we could go all the way back then have said that the pulse in music is basically at the same tempo as the human pulse which comes out to be about oh, we'll say seventy-two beats if you will, pulses, per minute.

这是音乐的脉搏,从十五世纪晚期到现在的音乐理论家们,像弗朗西斯·加福瑞,我们回到那个年代,那时就曾说过,音乐的律动,和人类的脉搏节奏基本一致,就是说相当于,我们说如果是你的脉搏的话,每分钟七十二下左右

耶鲁公开课 - 聆听音乐课程节选

In the fifteenth century, a greenhorn was a young cow or ox whose horns had not yet developed.

VOA: special.2010.05.23

For example,native traditions of pottery in Mexico changed greatly in the fifteenth century.

VOA: special.2009.09.09

For example,Paolo Uccello's fifteenth century work, "The Battle of San Romano."

VOA: special.2010.06.23