3 sentences

1. 这种习俗肇始于清朝初期。

   zhè zhǒng xí​sú zhào shǐ yú Qīng​cháo chū​qī.

   This custom originated in the early Qing Dynasty.

   Source: Dong Chinese Dictionary

2. 这个故事始于一个古老的传说。

   zhè gè gù​shi shǐ yú yī gè gǔ​lǎo de chuán​shuō.

   The story begins with an ancient legend.

   Source: Dong Chinese Dictionary

3. 经过多次尝试，实验始告成功。

   jīng​guò duō cì cháng​shì, shí​yàn shǐ gào chéng​gōng.

   After many attempts, the experiment finally succeeded.

   Source: Dong Chinese Dictionary