gistfile1.js

Template.timelinePublic.helpers({
    timelineItems: function() {
        return timelineItems.find({ timeline: Session.get("currentTimeline") });
    }
});

gistfile2.html

<template name="timelinePublic">
    <div id="timeline">
        <div class="timeline-bar"></div>
        <ul class="timeline-items">
            {{#each timelineItems}}
                {{>timelineItem}}
            {{else}}
                {{>itemsBlankState}}
            {{/each}}
        </ul> <!-- end .timeline-items -->
    </div> <!-- end #timeline -->
</template>

<template name="itemsBlankState">
    <div class="blank-state">
        <h3>No items have been added to this timeline yet.</h3>
        <p class="bs-subtitle">Bummer, right? Hang in there. Should be something soon.</p>
    </div>
</template>