Left-arm spinners Taijul Islam and Hasan Murad led Bangladesh to a 2-0 series sweep over Ireland with a commanding 217-run victory in the second test on Sunday.
The result capped a memorable 100th test for veteran Mushfiqur Rahim at the Sher-e-Bangla National Stadium in Mirpur.
Ireland, set 509 to win, were all out for 291 in their second innings.
Taijul took 4-40 to finish with eight wickets in the match, while Murad bagged 4-44 to add to his two first-innings victims.
Curtis Campher led Ireland's second-innings resistance with a gritty unbeaten 71 off 259 balls helped by contributions from Harry Tector (50), Jordan Neill (30) and Gavin Hoey (37).
Bangladesh scored 476 in their first innings, built around centuries from Mushfiqur Rahim, who scored 106, and Litton Das who made 128.
Ireland replied with 265, and Bangladesh declared on 297-4 in their second innings.
Taijul became the joint-fastest left-arm spinner in test history to reach 250 wickets alongside Sri Lankan great Rangana Herath.
Both reached the landmark in their 57th test and 102nd innings.
MAGICAL MUSHFIQUR
Wicketkeeper Mushfiqur's 106 in the first innings was followed by a composed 53 in the second, making him only the second cricketer after Australia's Ricky Ponting to score at least fifty in both innings of his 100th test.
"I would like to congratulate the Ireland team for batting so well, especially in these conditions," said Bangladesh captain Najmul Hossain Shanto.
"Taijul and Hasan Murad bowled really well for us and I'm happy with their performances."
Mushfiqur was named player of the match in his 100th test.
"I have played 100 tests so far and I want to play a few more," he said.
"I really enjoy each and every moment. I'm really lucky to represent my country for this long."
Bangladesh won the first test by an innings and 47 runs in Sylhet.