Although Canadian cricket benefited from the tours from England it was clear that they were unsustainable for two reasons. Firstly Canada did not have the players to provide enough of a challenge to top cricketers from a test playing nation. Secondly Canada's links with the mother country were loosening with the adoption of the national flag in 1965, the centennial celebrations of 1967 and perhaps more importantly the great increase in immigration from countries other than Britain. Canadian cricket mirrored this change by becoming more dependent on immigrants from firstly the West Indies and then Asia. This caused a great evolutionary change to cricket in Canada, which had always been synonymous with English culture. Now it became something different. Nothing illustrated this change more clearly than the anti-apartheid protests which dogged the Derrick Robins tour of 1976. Canada became a less attractive tour option for English players.