Sentence:  The dusky sons of Mohammed have been having a high old time down at the British India Company's wharves during the past few days. [. . .] It was the great week of ‘<WSD>Hobson-Jobson</WSD>,' as it is known out East, or the time of the Mohurram. 
Meaning of the word marked with <WSD> tags:  Any Indian religious observance, especially the Muharram.