What happened on October 1, 2017 in Catalonia?
user
On October 1st, 2017, an Independence referendum was held in the autonomous region of Catalonia, located in north-eastern Spain. The referendum was never officially recognized by the Spanish government, nor by international observers due to irregularities and interference. The organizers of the referendum vote have faced prosecution by the Spanish government after Judicial Courts ordered the referendum be halted, and later ordered the results of it be nullified.
assistant
Can you make it more simple to understand?
user
verywell,

 In October 2017, an independence referendum was held in Catalonia, Spain's autonomous region in the northeast. However, the Spanish government did not recognize the referendum and international observers deemed it irregular and interfered with. The organizers of the referendum were subsequently prosecuted by the Spanish government after judicial courts ordered the referendum to be stopped and declared the results nullified.
assistant