Markram, 22, who captained South Africa to the 2014 Under-19 World Cup title, was Elgar's fourth opening partner of the year and together they posted South Africa's first half-century start in 16 innings before converting it into three figures shortly after lunch, the first century opening stand since December.
Elgar and Markram were largely untroubled as they ticked off several milestones.
"Originally we thought the wicket is quite slow so you have to come closer".
Aiden Markram ticked an important box for the Standard Bank Proteas when he scored 97 on debut before being unluckily run out and sharing a first-wicket stand of 196 with Dean Elgar. Elgar, meanwhile, looked set for a double-century until he attempted pull against Mustafizur Rahman. South Africa will resume on 298 for one at Senwes Park. The timing of the dismissal left Bangladesh precariously placed, but Tamim Iqbal, who did not take his customary position at the top of the order, joined Mominul Haque to see off the crucial final period, Tamim ending the day with a huge six off the left-arm spinner Keshav Maharaj. "I was standing too close", he said. The declaration meant that Tamim could not open the innings for the first time in his 52-Test career nor bat until 49 minutes had elapsed in Bangladesh's innings, therefore exposing Liton Das - who had kept wickets for 146 overs - to the makeshift openers' role.
After cameos from Temba Bavuma and Faf du Plessis bulked up the total, the hosts declared.
Left-handed Elgar, who will return to the crease on 128, produced nine fours and two maximums from the 258 balls he faced as he recorded his ninth Test hundred, while Markram hit 13 fours before he was agonisingly run out so tantalisingly close to marking his Test bow with a ton. He did smack him for six, with his favoured slog sweep, but Maharaj eventually had his man.
The only wicket to fall was a run out when Markram and Elgar got into a mix-up on the first day and Markram missed out on a century on his test debut.
2013 - The last time a South Africa opener made a 150-plus score, Smith (234) against Pakistan in Dubai, the last of his 27 hundreds.
"You have to take your hat off to the innings that Dean played".
Hey, at least the South Africans read the pitch properly, something Bangladesh didn't and for which they're continuing to pay. "It's nearly like the ball is increasing in pace off the wicket when the spinner is bowling and then off the seamer it's coming quite slowly", he said. "We didn´t bowl very well", he said. "If we can squeeze them then I'd like to think we have enough in the tank to roll them early tomorrow and potentially have another crack with the bat".
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