There’s always new stuff being added to this timeline – but you need to look for it in the relevant decade. Some of the latest entries are:
1929: First Australian mention of avocado on toast 
1933: Brockhoff’s Chocolate Ripple biscuits make Chocolate Ripple Cake
1987: Mindil Beach Markets begin in Darwin
1954: Brockhoff’s launch Savoury Shapes
1959: First chickens specially bred for meat
1995-96: Take-away sushi appears in food courts