It’s the anniversary today. Yes, this the reason we watch matches from the Kop.
The Battle of Spion Kop was fought about 38 km 24 mi west-south-west of Ladysmith on the hilltop of Spioenkop1 along the Tugela River, Natal in South Africa from 23–24 January 1900.
It was fought between the South African Republic and the Orange Free State on the one hand and British forces during the Second Boer War during the campaign to relieve Ladysmith.
It was a British defeat.