Date sort

Maybe you can sort items before creating your array by day in your getFormattedData(items), like:
`items.sort((itemA, itemB) => {`
`if(moment(itemA.ts).isBefore(itemB.ts)) {`
` return -1;`
`} else if(moment(itemB.ts).isBefore(itemA.ts)) {`
` return 1;`
`} else {`
` return 0;`
`}`
`}).forEach(....`

Start at the getFormattedData(items) entry point mentioned in the issue and inspect how items are turned into the timeline array. Verify the intended timestamp order against the displayed events; done means items are consistently ordered by day before the array is created.

Written by the indexing model from the issue text.