It was education, education and more education as schools from all over the world attempted to beat the record for the largest simultaneous lesson.
Children from John Hanson Community School, Andover, and Stanmore School, Winchester, were among those who joined tens of thousands of pupils in 50 countries to try to beat the previous record of 28,801 pupils.
The record attempt took place at various times across the globe to incorporate different time zones.
It wasn't just children who took part in the half-hour lesson. "Pupils" could be of any age and the classroom didn't have to be in a school - or even inside.
The record attempt was part of a campaign to end illiteracy and to have every child into school by the end of 2015.
The lesson itself will focus on issues connected with education for all.
Currently, 115 million children around the world are out of school and 862 million adults are illiterate - the majority being girls and women.
It remains to be seen whether the record attempt was successful as officials from Guinness World Records are still counting.
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