2 sentences

1. 长安曾是古代丝绸之路的起点。

   Cháng'ān céng shì gǔ​dài sī​chóu zhī lù de qǐ​diǎn.

   Chang'an was once the starting point of the ancient Silk Road.

   Source: Dong Chinese Dictionary

2. 唐朝时期，许多外国商人来到长安做生意。

   Táng​cháo shí​qī, xǔ​duō wài​guó shāng​rén lái​dào Cháng'ān zuò shēng​yi.

   During the Tang Dynasty, many foreign merchants came to Chang'an to do business.

   Source: Dong Chinese Dictionary