QUESTION: Fix punctuation: In 1916 the University of Chicago celebrated its first 25 years and as part of the QuarterCentennial Celebration they awarded Van Vleck an honorary doctorate on 6 June 1916
ANS: In 1916 the University of Chicago celebrated its first 25 years and as part of the Quarter-Centennial Celebration they awarded Van Vleck an honorary doctorate on 6 June 1916.

QUESTION: Fix punctuation: Both somber and warm
ANS: Both somber and warm.

QUESTION: Fix punctuation: Other factors also play a role An increase in traffic circulation or traffic diversion schemes for example will result in different measurements than those recorded for the same street a year earlier
ANS: Other factors also play a role. An increase in traffic circulation or traffic diversion schemes, for example, will result in different measurements than those recorded for the same street a year earlier.

QUESTION: Fix punctuation: The drivetrain warranty covers parts of the car such as the engine transmission driveshaft etc
ANS:
The drivetrain warranty covers parts of the car such as the engine, transmission, driveshaft etc.