99 - Balls taken by Prithvi Shaw to score his century, which is the third-fastest by any batsman on Test debut. Shikhar Dhawan's 85-ball ton against Australia in Mohali in 2012-13 is the fastest century on debut. Dwayne Smith had reached hundred off 93 balls on his debut.
3 - Number of batsmen to score centuries on their Test debut at a younger age than Shaw. Mohammad Ashraful and Hamilton Masakadza had done it before turning 18, while Saleem Malik was six days younger than Shaw. Overall, Shaw is the 15th India player to get a ton on his Test debut.
2 - Shaw is the second-youngest India player to score a Test century, behind only Sachin Tendulkar. Overall, Shaw is the seventh youngest to get to a century in Tests.
3 - Players to score centuries on their first-class debut as well as on their Test debut. Before Shaw, India's Gundappa Viswanath and Australia's Dirk Wellham had this dual achievement. Virender Sehwag had scored a century on Test debut as well as in his maiden first-class innings, but that came in his second first-class match.
1 - Prithvi Shaw, at 18 years and 329 days, topped the list of the youngest players to score a 50-plus score on Test debut for India. In fact, he is the first India teenager to score 50 or more on debut. The previous youngest India batsman to score 50-plus on Test debut was Abbas Ali Baig, scoring 112 at the age of 20 years and 126 days against England at Old Trafford in 1959.
2 - Players to score 50-plus at a younger age than Shaw in Tests in India. Both were for Pakistan: Hanif Mohammad and Mushtaq Mohammad. Both achieved this before turning 17. Before Shaw, the youngest India player to score 50-plus in India was the current coach Ravi Shastri (19 years and 210 days), against England in Delhi in 1981-82.
2007 - The last time an India player younger than Shaw made a Test debut - Ishant Sharma at 18 years and 265 days against Bangladesh in Dhaka. Overall, Shaw is the 13th youngest Test debutant for India.
3 - Number of batsmen to face the first ball of a Test match at a younger age than Shaw. Hamilton Masakadza, Tamim Iqbal and Imran Farhat are the ones who did it. For India, the previous youngest to face the first ball of a Test was Budhi Kunderan at 20 years and 113 days against Australia in 1959-60.
14 - First-class matches played by Shaw before making his Test debut. He averages 56.72 in those games, having hit seven centuries in 26 innings. On his first-class debut, for Mumbai in 2016-17, he scored a century against Tamil Nadu in the semi-final of the Ranji Trophy - incidentally, at the same venue as of his Test debut.
3- Number of higher individual scores on debut for India than Shaw's 134. Dhawan's 187 is the highest, followed by Rohit Sharma's 177 and Viswanath's 137. Overall, Shaw's innings is the third-highest for any batsman at the age of 18 or less.

Bharath Seervi is stats sub-editor at ESPNcricinfo. @SeerviBharath